CHAPTER VIII

THE CROWNING YEARS

[By JOSEPH MCCABE]

When Professor Bölsche closed his biographical sketch in 1900 with the

three stars that “still glowed,” he had little suspicion how widely they

would yet flame out before they passed from the firmament of biography

to that of history. As it has proved, Haeckel was then only entering

upon the period of vast popular influence which forms the closing part

of his remarkable career. He had in 1900 a few thousand thoughtful

readers in several countries beside his own. To-day he is read by

hundreds of thousands in Germany, England, France, and Italy, and the

fourteen different translations of his most popular work have carried

his ideas over the whole world. To-day the thoughts of this professor of

zoology in an obscure German town are discussed eagerly by bronzed and

blackened artisans in the workshops of London, Paris, and Tokio, as well

as throughout Germany. The reader will have noticed in the earlier

chapters that the most dignified and disdainful of Haeckel’s opponents

have been the academic philosophers. In the year 1905 a Berlin professor

of philosophy, a stern critic of his system, devotes a long special

section of his _History of Philosophy since Kant_ to Haeckel and his

long-contemned speculations. Why? Because, to quote his concluding

sentences, “the far-reaching impulse that Haeckel has given will never

more die out. He has become a sower of the future. The glad echo that

his words have found in a hundred thousand breasts must stir every

representative of ruling power in Church and Science to make a closer

self-examination, a closer scrutiny of received ideas. Does not the

thought press irresistibly upon us that somehow or other we have entered

upon the wrong path in our modern development?”[9]

Footnote 9:

Dr. Otto Gramzow’s _Geschichte der Philosophie seit Kant_, p. 503.

In an earlier chapter Professor Bölsche tells the moving story of the

writing of the _General Morphology_: the young man making his masterly

appeal to the scientists of Germany, which he thinks they will read over

his grave. There is a singular parallel to this in Haeckel’s attitude at

the time when Bölsche closed his work. Haeckel had just written another

“last will and testament,” another proud and defiant utterance of what

he felt to be the truth about God and man and nature. Once more he

seemed to see the marble gates at the close of his career, and his

sombre glance fell round on a world that was, he thought, sinking into

reaction. This time he appealed to the people. The five years that have

followed have witnessed an extraordinary response on the part of the

people. With the speed of a popular romance his work has flown through

Europe. He has received a hundred proofs that, at all events, the ideas

he thinks to be fraught with salvation for humanity are being considered

and discussed in wide circles that had never before known that there was

a “riddle of the universe.” He has been urged in the heart of the Sahara

to read his own works. He has met, as he travelled on an Alpine railway,

cultured nuns who told him they had learned evolution from “Professor

Haeckel’s works.” He has looked down with mingled feeling on the wild

applause of a gathering of thousands of Socialists. He has been

immortalised—strangest and last of all apotheoses—in an academic history

of philosophy!

The present chapter will tell the story of these five stirring years. It

will aim at conveying to the English reader, by plain presentment of

facts, a full picture of the activity that has attracted or distracted

the attention of so many in the last few years. If Dr. Gramzow is right,

if through these five years of indefatigable labour the aged scientist

has become a “sower of the future,” it is well for friend and foe to

understand him.

There is only one respect in which one’s personal feeling may be allowed

to tinge such a narrative as this. For good or evil Haeckel’s great

influence on our generation is a reality. It is the biographer’s duty to

record and measure it: the reader’s to appraise it. The future historian

of the dramatic course of humanity’s ideals must be left to interpret it

in cosmic perspective. Do the stars exult, or do they grow thinner and

colder in their light, over this great stirring? The far-distant

generation, that will have reached the summit of the hill, will know. We

who, with narrow horizon, are cutting our fond paths up the slope, have

but the poor luxuries of faith and hope. Yet there is one aspect of

Haeckel’s recent life that makes us almost forget the cosmic issues.

These five years have been, in literal truth, “crowning years” of his

aims. For all the slights and insults that have been showered on the

grim worker he has had a rich recompense of honour and love. Even if his

ideas are to fade and wither like his laurel crowns, it will be

something for a future historian to record that a gentler and more

genial light fell about his closing years. As Gramzow says: “He _tried_

to give us his best.”

An event that Professor Bölsche has only briefly alluded to in his last

crowded chapter was a fitting inauguration of the last decade of

Haeckel’s career. On the 17th of February, 1894, his sixtieth birthday

was celebrated at Jena. The lover of nature and of the silent study

passes uneasily through such functions, but the student of Haeckel’s

life must dwell on it. Jena had for some years realised that world-fame

somehow attached to the straight, smiling figure that it saw passing

daily to the Zoological Institute. It had witnessed the grave procedure

of the boycott in the sixties. It had heard distinguished leaders of

Churches, like Professor Michelis, brand his works as “a fleck of shame

on the escutcheon of Germany,” “an attack on the foundations of religion

and morality,” “a symptom of senile marasmus.” It saw all these unworthy

attacks sink into confusion, and a new era begin. It heard of greater

universities competing for their professor and his refusal to leave

them. It saw Bismarck fall on his neck and kiss him repeatedly when, in

1892, he headed the deputation to invite him to Jena; and it noted how

the Prince absolutely refused to drive through their town “unless

Haeckel comes with me” in the carriage. It gave his name proudly to one

of its fine new streets.

In February, 1894, Jena witnessed a remarkable celebration—remarkable

not only to those who had lived with him in the sixties. A marble bust

of Haeckel was unveiled by Professor Hertwig, with noble speech, in the

Zoological Institute. A festive dinner, such as Germans alone can

conduct, was held in the famous Luther-Hostel. More than a thousand

letters and telegrams poured in from all parts of the world, and scores

of journals awoke the interest of Germany. I have before me the

privately-published report on the celebration, autographed to “Agnes

Haeckel.” Two lists in it catch the eye. One is a list of Haeckel’s

publications. Apart from his long and numerous articles in scientific

journals he has written forty-two works (13,000 pages, frequently

quarto) in thirty-three years. All but two are pure contributions to

science: some of them are classical monographs of original research;

most are beautifully illustrated by himself. The second list gives the

names of those who have contributed towards the marble bust by Professor

Kopf, of Rome. It is worthy of science. It includes five hundred

university professors and heads of academic institutions in all parts of

the world, from Brazil and the States to Algiers and Egypt and India. In

their name Professor Hertwig greeted Haeckel as one “who has written his

name in letters of light in the history of science.” From Italy the

Minister of Public Instruction sent the following telegram: “Italy, that

you love so much, takes cordial part in all the honours that the

civilised nations of the earth are heaping on you in commemoration of

your sixtieth birthday. In the name of the Italian Universities, which

love you so much and so much admire your undying work, I send you a

heartfelt greeting and wishes for a long and happy and active career.”

Dr. Paul von Ritter gave 75,000 marks [shillings] for the erection of a

monument to Haeckel at Jena when the hour comes. He had previously given

300,000 marks to be spent in the furtherance of Haeckel’s scientific

views.

The story so vividly unfolded by Professor Bölsche has explained how the

estrangement arose between Haeckel and so many of his scientific

colleagues in Germany. It is not a little gratifying to find the names

of some of his critics amongst the subscribers to his festival. The

personality, the aim, the self-sacrifice of the man, no less than his

distinguished special contributions to science, had won a superb

recognition.

In the years 1894-6 Haeckel published the _Systematic Phylogeny_. “We

may differ,” says Professor Arnold Lang of it, “as to the value of

special or even fundamental opinions in it, but we must stand before

this work in astonishment and admiration: astonishment at the vast range

of his knowledge—it would seem that one head could contain no more:

admiration of the intellectual labour with which the various phenomena

are connected and the gigantic mass of material is reduced to order.”

The Royal Academy of Science at Turin judged the work the best that had

been published in the last four years of the nineteenth century, and

awarded its author the Bressa prize, a sum of 10,000 lire.

[Illustration:

HAECKEL AND A GROUP OF ITALIAN PROFESSORS.

HOTEL BRISTOL, GENOA, 1904.

Pavona. Cattaneo. Ariola. Berninzo. Porro. Locchi. Andres.

Monti. Issel. Orlando. Penzig. Maggi. Haeckel. Morselli. Cattaneo.

]

In August, 1898, he made a further visit to England. The International

Congress of Zoology met at Cambridge, and Haeckel was invited to deliver

an address. He chose his ever-present theme—the evolution of man. The

long lecture, or essay, has been translated by Dr. Gadow under the

title, _The Last Link_. The title is somewhat misleading, as only a page

or two are devoted to “the last link.” Otherwise the little work offers

students a most excellent summary of “our present knowledge of the

evolution of man,” the title which Haeckel gave it.

But the last period of Haeckel’s career is associated chiefly with, and

is really inaugurated by his now famous _Riddle of the Universe_,

published in 1899. To understand that work, to avoid the extremes of

praise and censure that have been lavished on it, one must put oneself

in Haeckel’s position at the close of the last century. Mr. Wells has

given us a forecast of the coming social order in which the intellectual

few are separated by a wider and deeper gulf than ever from the workers

and the women of the world. That keen-eyed and judicious social writer

has already modified his forecast, but there were symptoms enough of the

possibility of such an issue a few years ago. In Germany the signs were

ominous to a man like Haeckel. The older Liberalism to which he belonged

by tradition and conviction seemed in danger of being ground to dust

between the upper and the nether stones of the new political mill—the

increasing strength of Social Democracy and the increasing and

consequent alliance of Conservative Kaiserism with the still powerful

Catholic Church. Haeckel distrusted the power of Demos much as Renan did

when he wrote his sombre dialogues in the seventies; and a political

alliance with the Vatican opened out to him the grim prospect of a

return to the Middle Ages. The freedom of research and teaching for

which he had fought with unsparing vigour was, he thought, imperilled by

the new alliance, no less than the very existence of culture was

endangered by the triumph of Social Democracy. His academic colleagues

remained in that isolation which he had ever bitterly resented.

In face of this situation, which seemed to grow more sombre as the last

years of the century dragged on, his zeal for truth and progress had but

one outlet. He must appeal to the people. He must take the conclusions

he had so laboriously worked out in his _Systematic Phylogeny_, and

translate them from scientific hieroglyphics into a demotic tongue. He

must nail his theses with his own hand on the cathedral door, like the

great monk whose work seemed in danger of perishing. The partial success

of his _History of Creation_ was encouraging, though that work had only

penetrated into the first circle beyond the sacred academic enclosure,

and was still unknown to the crowd. Gathering his strength for what he

believed to be his final effort, he blew a blast that would reach the

far-off shop and factory. It must be no gentle note, no timid suggestion

that the scientific work of the nineteenth century had thrown doubt on

current religious notions. He was quitting the stage. He believed these

things were true, were established. The world must listen to them, must

discuss them; and then the twentieth century would pass its informed

verdict over his grave.

So he wrote a vigorous, an irritating, an awakening book. It must be

read in this context. The charge of “dogmatism” so often hurled at it is

not without humour. It is generally raised by men who in the same breath

hold their truths so dogmatically that they resent his very questions.

They forget, too, that the chief conclusions of the _Riddle_ are

references to the larger work in which, soundly or unsoundly, they are

provided with massive foundations of scientific material. In England

there is some excuse, as the larger work is untranslated and unknown;

though one may resent the critic who charges Haeckel with egoism for his

constant references to his other works and then proceeds to ridicule the

slenderness of the foundations of his theories. Further, it is too often

forgotten that Haeckel opens his work with a rare warning to the reader

that his opinions are very largely “subjective” and his command of other

subjects than biology is very “unequal.” In fine, his constant and

exaggerated allusions to the opposition he encounters from his

scientific colleagues is, for any candid reader, a sufficient corrective

of “dogmatism.”

The work lit up at once a flame of controversy that has hardly yet

diminished in Germany. Students have told me how, when some professor

dropped the well-known name in the course of his lecture, the class

would split at once into two demonstrative sections. Ten thousand copies

of the library edition of the work were sold within a few months, and it

quickly ran to eight editions. This remarkable success irritated his

opponents, and the wide range of the subjects touched in the work gave

them opportunities. Germany was deluged with pamphlets of offence and

defence. Some of Haeckel’s pupils replied to his opponents, but the

master himself smiled through the storm. His chief critics were men with

no competence in biology, and he was not minded to comply with their

stratagem of withdrawing attention from the substantial positions of the

work. Dennert, the philologist, swept together all the hard sayings

about Haeckel that the fierce struggle of the preceding twenty years had

produced—Paulsen and Adickes, the metaphysicians, poured philosophic

scorn on his pretensions to construct a theory of knowledge. Adickes, in

particular, met him with a vigorous fusillade of pure Kantism. It is a

curious commentary on this long philosophic disdain to find Haeckel

awarded a prominent place amongst “the philosophers since Kant.”

Two points in this connection are noteworthy. Haeckel’s first sin

against the ruling metaphysic of the nineteenth century was his “naïve

realism.” He had dared to think he could break beyond the charmed circle

of our states of consciousness. He had dreamed that a real material

world lay here in space before the human mind came into existence; that

a living, palpitating humanity, not a bloodless phantasm in the mind,

called for our most solemn efforts. Where the ordinary reader saw a

truism the metaphysicians recognised a deadly sin, and laughed Homeric

laughter. To-day we have, both in England and Germany, a strong claim

arising amongst the metaphysicians themselves for a return to a realist

basis. Haeckel’s second and chief sin was his claim to have thrown light

on the evolution of consciousness and his disdain of all study of mind

that was not grounded on evolution. To-day Gramzow writes: “The

criticism which he makes of Kant’s theory of knowledge from the

evolutionary point of view is the greatest advance that philosophy has

made in that branch since Kant’s time.”

The most violent critics of the _Riddle_ were the theologians. It would

be improper here to enter into the controversy, and indeed Haeckel has

paid little attention to his critics of late years. Some time ago a

German religious magazine was sent to me in which one of his leading

critics had written a shameful article with the aim of alienating him

from me. I at once wrote to him, and received a letter brimming over

with his hearty laughter at the idea that he might have taken any notice

of what they said. The eminent ecclesiastical historian, Professor

Loofs, made a ponderous attack on his incidental reference to the birth

of Christ. As Loofs himself denied the divinity and supernatural birth

of Christ, Haeckel felt little inclination to enter on a serious

argument about the human parentage. The theologian was so much hurt that

he used language, as far as was consistent with a broad view of the

theological dignity, that came within legal limits, and then quoted to

Haeckel the page and letter in the German code on which he might take

action!

But a great counterpoise to these bitter attacks—attacks that forgot, as

Gramzow says, that “there is an ethic for the critic as well as for the

man of science”—had now been provided. Men like Dr. Schmidt, Dr.

Breitenbach, Professor Bölsche, and Professor Verworn rallied to their

master, and conveyed a juster image of him and his work to the public.

The ominous silence of the great biologists was felt to mean that his

views were, in substance, no heresy to them. The man’s warm and

enthusiastic zeal for truth and humanity, his earnest efforts to pierce

the barriers that shut off the treasures of science from the mass, could

not be ignored. A cheaper edition of his work was demanded, and it was

soon in the hands of more than 150,000 readers. Country after country

imported his “gospel of Monism,” the stirring agitation spread to

France, England, America, Italy, and on until it reached Australia and

Japan. To-day fourteen translations of the _Riddle_ bear his teaching to

the ends of the world.

Little need be said here of the Haeckel controversy in this country. I

remember well the day when the German work was submitted to me with a

view to publication. It did not seem to have the stuff of a

conflagration in it. I hazarded a guess that it would sell a thousand

copies, and thought that it contained so valuable a description of the

evolution of mind that it should be published. It has sold, with rather

less than the usual advertising, with no special machinery for pressing

it such as is at the command of religious works—it has sold about

100,000 copies. The success of the work astounded us. While we were

being accused of “thrusting it down people’s throats” we could not have

arrested its circulation, had we wished, without positively refusing to

republish it. Indeed, the last library edition has long been out of

print, though still in frequent demand. It has made Haeckel’s a familiar

name in circles where even Spencer has been heard to be described as “a

great balloonist.” Clergymen have written to their journals saying how

they heard the Monistic philosophy discussed by groups of paviors. Sir

Leslie Stephen told me, on his death-bed, but with a momentary flash of

his old humour, how an Orkney clergyman had written to him for

consolation, as it was circulating amongst the fishers of that _ultima

thule_.[10]

Footnote 10:

The reader who desires a summary of the criticisms passed on the work

may consult Dr. Schmidt’s _Der Kampf um die Welträthsel_ for Germany,

and my own _Haeckel’s Critics Answered_ for England. The only

biologist of competence who has written on it in this country is Prof.

Lloyd-Morgan (_Contemporary Review_, 1903), but his reply is indirect.

Sir Oliver Lodge has recently dealt with it at length in his _Life and

Matter_, but the distinguished physicist’s conception of life is in

extreme and general disfavour with the biologists of England.

From the seething agitation he had aroused Professor Haeckel cheerfully

withdrew in the autumn of 1900 to make his long journey to Java. He now

lived under the public eye, and amusing constructions were put on his

movements. American journalism arrived, by its peculiar methods, at the

knowledge that he had gone in quest of bones of the “missing link.” A

few bones of a half-human, half-ape form had been discovered on the

south coast of Java a few years previously, and the trained American

imagination quickly constructed a theory, which as quickly crystallised

into fact. Haeckel had been heavily subsidised by an American

millionaire to discover more bones of the ape-man of Java. Not to be

outdone, other journals added a rival subsidy (from the American

Government) and a rival search. The sober truth was that Haeckel had

used his Bressa prize fund, with a subsidy from the Ritter fund at Jena,

to make a study of botany and marine life in the tropics. He was within

a hundred miles of the spot where Dubois had found his interesting

relics, but made no effort to go further. For him the evolution of man

rested on too massive a foundation for a few bones to increase its

solidity. Once more he brought home huge cases of preparations, a large

number of sketches (some of them touched up by Verestchagin, who was

returning on the boat from China), and material for the inevitable book.

_Aus Insulinde_ is a charming and finely illustrated work of travel, but

has not been translated.

Before he left Jena he had, with his characteristic urbanity and

diligence, given personal replies to about a thousand letters he had

received apropos of his _Riddle of the Universe_. The epistolary flood

rose higher than ever on his return. The struggle had spread to England

and France. He had returned to a cauldron of controversy. He quietly

resumed his teaching at the university and attacked his still formidable

literary programme. Day after day the aged scholar—he was now in his

sixty-seventh year—briskly stepped up to the podium at the Zoological

Institute and delivered his lectures, drawing his objects with a few

quick strokes on the board or exhibiting the plates prepared by Giltsch.

He noted with a quiet gleam of satisfaction that a few ladies now

ventured into the “Materialist” circle. The new century had begun.

In 1902 he issued the cheap edition of the _Riddle_, of which 180,000

copies have been sold in Germany, with a reply to its critics. “The

great struggle for truth,” he wrote to his friend, Dr. Breitenbach,

“grows fiercer and fiercer, the more my work is attacked by the clergy,

the metaphysical schoolmen, and the erudite Philistines. I am

continually receiving lively and sometimes enthusiastic letters of

congratulation from all parts of the world.” In the meantime he was

engaged upon two important works, which he published in 1903.

The earlier edition of the _Anthropogeny_, of which Professor Bölsche

has written, was undergoing a thorough revision. New evidence was

pouring in every year in support of his sketch of the genealogy of

humanity. Dubois had discovered what is now admitted to be an organism

midway between the highest ape and the earliest prehistoric man. Selenka

had published wonderful studies of the anthropoid apes. Friedenthal and

others had shown the literal blood-relationship of the higher apes and

man by a series of beautiful experiments. He must once more gather

together the enormous mass of facts, and marshal them with his old

command. For six months he worked incessantly on the new edition. A

hundred pages of matter were added to it, a hundred fresh illustrations.

Great and exacting as the task would have been for a younger man, the

work appeared in 1903 in a form that silenced criticism. I need only

quote a sentence from the notice of it that was published in the _Daily

Telegraph_ by one of our leading literary critics, when it was issued in

this country. “It is a grand conception, this of the great physiologist,

that every man, in the brief term of his prenatal development, should go

through these successive changes, by which man has, in countless ages,

been evolved from the primitive germ-cell; and it is triumphantly

vindicated in _The Evolution of Man_. It is impossible to do justice in

words to the patience, the labour, the specialised skill and industry

involved in the preparation of this monumental work.” And one has only

to compare this latest edition with the previous one to see at a glance

the complete transformation, and realise the freshness and force of mind

of the aged biologist.

In the face of such a work, with its towering structure of proof from

embryology, comparative anatomy, and paleontology, one must look

leniently on some of Haeckel’s references to fellow-anthropologists like

Virchow. It is not many years since the great pathologist declared

emphatically at a scientific congress that “we could just as well

conceive man to have descended from a sheep or an elephant as from an

ape.” When a leading anthropologist could say such things in 1894, a

strain is laid on our charity. Darwin’s words, written in a letter to

Haeckel, press on us once more: “Virchow’s conduct is shameful, and I

trust he will one day feel the shame of it.” Professor Rabl has lately

contended that his deceased father-in-law (Virchow) admitted the

evolution of man in private. We cannot wonder if Haeckel merely retorts:

“So much the more shame on his public utterances.” Such things must, at

least, be borne in mind when one reads Haeckel’s severe judgment on some

of his great contemporaries.

The _Evolution of Man_ not only offers the complete proof of its

thesis—a proof accepted by every prominent biologist in England and by

many prelates (such as the Bishop of London and the Dean of

Westminster)—but affords also interesting proof of Haeckel’s artistic

gifts. Some of the best plates in the work are executed by him. But in

the same year, 1903, he gave a more popular evidence of it. In detached

numbers he published the large and beautiful volume of his _Art-forms in

Nature_. In this work he depicts with remarkable success hundreds of the

most beautiful forms that his long study of marine life had brought

before him. A fine expression of the man’s dual nature, the work appeals

with equal force to the æsthete and the scientist. And during the long

hours that he was peering into his microscope and sketching the delicate

and graceful forms, the din and roar of the mighty controversy he had

aroused was breaking in with every post. By the end of the year he had

received more than 5,000 letters in connection with the _Riddle of the

Universe_. Scurrilous letters and idolatrous letters, sober letters and

fantastic letters, flowed upon the Zoological Institute, where he worked

with pen and pencil, and were duly read. He merely defended himself by

posting to each correspondent a printed form that he would soon issue a

new work in which the further questions would be answered. He had given

his life to science and humanity, and would not withdraw for the

well-earned rest. And from a thousand pulpits over Europe and America

the aged and self-sacrificing worker was being denounced and caricatured

to audiences who had not the remotest knowledge of his aims and his

work. A friend of mine heard a minister in an important Glasgow church

assure his congregation from the pulpit that “Haeckel was a man of

notoriously licentious life;” he had heard it “from a friend of

Haeckel’s.” At the very time when Haeckel was buried in his splendid

artistic work, the _Christian World Pulpit_ was issuing a sermon in

which Dr. Horton was explaining “the personal factor” in Haeckel. “He is

an atrophied soul, a being that is blind on the spiritual side,” the

popular preacher declared.

From the turmoil Haeckel withdrew once more to his beloved Italy. There

was another reason for his flight. His seventieth birthday was

approaching. He had declared at the banquet given in his honour on the

occasion of his sixtieth birthday, that if he lived for the seventieth

he would “bury himself in some dark corner of the Thuringian forest, far

away from all festivities.” Strenuous and exacting as the ten years had

been, he now found himself on the threshold of his eighth decade of

life. His wife, also, was ailing, and they both proceeded to the Italian

Riviera at the beginning of the winter. Few of his friends were informed

where he was. “I want,” he wrote to me, “to pass my seventieth birthday

in peace.” He settled at Rapallo, and at once commenced his favourite

fishing for the tiny inhabitants of the Mediterranean. The “cloistral

quietness” of the little town, the daily prospect of the blue

Mediterranean, “the solitary walks in the wild gorges of the Ligurian

Apennines, and the uplifting sight of their forest-crowned

mountain-altars” restored his freshness of spirit. Once more a vast

labour lay before him. He had promised a work that would answer all

biological questions addressed to him in the 5,000 letters of his

correspondents. He had all the queries, all the criticisms of his views,

all the latest literature of the subject, to digest into a compact

volume. The result was a new work of 557 pages, _The Wonders of Life_, a

remarkable summary of his zoological and botanical knowledge, with

excursions into psychology, suicide, lunacy, ethnography, theology, and

ethics. Its twenty solid and well-arranged chapters were written in four

months.

“Promptly at 5,” he wrote in December, “I am awakened by the bells of

the church hard by. I write continuously until 12. After a frugal lunch

and a short rest, the afternoon is devoted to a walk or to water-colour

sketches. The longer days allow me to sit and paint in the open air

until five. Our quiet evenings, from 5 to 10, are spent in reading and

in writing letters. The interruption for dinner, from 7 to 8, gives us

an opportunity to exchange jokes over our ‘cloistral life.’” Thus the

veteran naturalist, of “notoriously licentious life” (the words of the

Glasgow preacher were spoken at this very period), approached his eighth

decade of life—of work.

He remained at Rapallo until the birthday had passed, but his address

had meantime become widely known, and the miniature postal arrangements

at Rapallo were severely taxed. Letters, telegrams, flowers, and other

gifts—mostly spontaneous expressions of gratitude from “unknown readers

of the _Riddle of the Universe_“—reminded him of the larger world that

now appreciated him. A still larger number of letters and gifts reached

Jena from all parts of the world. Hundreds of German journals and

periodicals devoted long and generous articles to the distinguished

worker, and little festive commemorations were held at many of the

universities. At Zurich, Professor Conrad Keller and Professor Arnold

Lang delivered speeches which have since been published. Jena sent a

deputation consisting of a number of its professors to visit the hero in

person at Rapallo. Reflecting on these remarkable demonstrations and the

extraordinary correspondence that continually reaches Haeckel, one is

disposed to repeat of him the phrase applied to a great heretical

teacher of the Middle Ages, Peter Abélard: “Never was man so loved—and

so hated.”

A feature of the commemoration that peculiarly gratified him was the

special festive number of the German students’ lively periodical,

_Jugend_, published at Munich. On February 16th it appeared as a

“Haeckel number,” full of sprightly anecdote and generous appreciation,

and bearing on its cover a striking reproduction in colour of the

Lenbach portrait. His letter of thanks to the journal shows that the

repose and the beauty of Italy, and the outburst of affection his

birthday has provoked, have set him perfectly atune to life once more.

“Ah! Prithee stay, thou art so fair,” he almost says in the Goethe

phrase, as he “hails the moment fleeing.” He goes on to deprecate the

effort to make “a learned man” of him. “That, alas, I am not. We have in

Germany many professors and teachers who are more learned, and have read

far more books than your poor Jena schoolmaster. But from my earliest

youth, since I tore up flowers and admired butterflies in my fourth

year, I have yielded to the inclination of my heart and studied

incessantly one great book—Nature. This greatest of all books has taught

me to know the true God, the God of Spinoza and Goethe. Then as

physician I saw human life in all its heights and depths, and in my many

travels through half the globe I learned the inexhaustible splendour of

the earth. And I have honestly tried with all my modest powers, to

reproduce with pen and pencil a part of what I saw, and reveal it to my

fellows. I have had to fight many a hard fight, and in my hatred of lies

and hypocrisy and decaying traditions I have at times struck a sharp

note. But I trust, dear _Youth_, that thou wilt not judge all that

harshly in so old and storm-tried, a warrior, and that thou wilt go on

to stand with me, shoulder to shoulder, fighting for the spiritual

progress of humanity, fighting in the cause of the great trinity of the

true, the good, and the beautiful.”

The work he had composed in four months at Rapallo, _The Wonders of

Life_, was issued on his return. It has not had the stormy success of

its predecessor. The fact is instructive. This work contains a fuller

proof of the chief scientific positions of the _Riddle_. It is,

therefore, more technical and more difficult to read. Amongst other

matters, it contains a fine summary of those speculations on the

mathematical forms of organisms and the idea of individuality of which

Professor Bölsche has written so appreciatively. It must be recognised

that Haeckel has fulfilled a duty in thus providing the general reader

with a fuller biological proof of his theses. If that estimable person,

the general reader, betrays less eagerness for the fuller proof, we must

remember that for ages he has been taught to disregard such a thing as

“proof.” It is the general reader that makes Haeckel didactic. It is

Haeckel’s opponents who made the general reader. However, the great bulk

of _The Wonders of Life_ is true to its title. It is an intensely

interesting summary of biological facts. For the rest, if it contains

speculations that run beyond the evidence (though based on it) who is

better qualified to open up these new paths than men with the enormous

range of knowledge that Haeckel has? “I agree with you,” one of the

first biologists in England wrote to me recently, “that Haeckel is one

of the first living biologists. There are not any others who have the

same wide knowledge and experience and consequent ‘point of view.’ He

knows his zoology, botany, physiology, and pathology, also geology, and

has travelled, and has a keen interest in and knowledge of no small

degree of philology, archæology, and ethnography.”

Haeckel was in Italy once more in the autumn of 1904, and although he

did little quiet travel and no fishing for radiolaria it is probable

that no visit to the country ever afforded him such satisfaction. One

great shadow lay over the beautiful land and its genial race whenever he

visited it—a gross and almost impenetrable superstition. Turn off the

great routes of Italy, with their splendid cathedrals, and visit the

small towns and villages. See the scum of Naples tearing the clothes

from each other to kiss the “blood of St. Januarius.” Peer into the

abysses of vice and grossness that are covered effectually by this

formal and unlovely practice of religion. Haeckel had seen all that with

sad eyes for many a year.

In 1904 a little institution that called itself “The International

Congress of Freethinkers” announced that it would hold its annual

gathering at Rome. The pope—the new pope, friend of the royal

house—lodged a feeling protest with the authorities. The priests poured

inflammatory rhetoric over their people until violence seemed

inevitable. The Italian Government’s only reply was to grant the

heretics all the privileges that were ever given to the great Catholic

pilgrimages: to put at their disposal its finest institution, the

Collegio Romano, and to send its Minister of Public Instruction to open

the Congress. Veteran warriors such as Haeckel, Berthelot, Salmeron,

Sergi, Denis, and Björnsen, gladly announced their adhesion. Paris sent

a thousand delegates; Spain nearly a thousand; Italy her thousands.

Whole municipalities in Italy and France (even that of Paris) took part.

The Latin world was aflame with rebellion. We met, seven thousand

strong, in the heart of Rome, and Rome—the jade—smiled prettily as we

marched up the Via Venti Settembre, as it had smiled once on processions

of Cybele, and then on processions of Catholics.

Haeckel was greeted with a wild demonstration as he stepped on to the

platform in the great _Cortile_ of the College. Straight and proud,

white with age but pink with more than the freshness of a young man, he

adjured them in futile German, in his thin, inaudible voice, to form

themselves into a new Church, the great Association of Monists. Few

heard and less understood him, but his name was on every heart and his

reception superb.

A week afterwards I picked up a London journal in an Italian hotel, and

read—as hundreds of thousands had done—that a miserable Freethought

conference had been held at Rome: that its rowdy proceedings had

disgusted the scholars who had, in a misguided moment, lent their names

to it. Thus are we informed at times. I remembered Sergi’s enthusiastic

comments at the close. “E magnifico, e magnifico,” was all he could

gasp. I remembered Haeckel’s exultation as we walked home to his Albergo

Santa Chiara, and Berthelot’s deep joy. The same scholars, except

Björnsen, took part in the Congress at Paris, in 1905, when 100,000 of

us were nobly received by the Conseil Municipal. But Haeckel was too

unwell to come. Nature has laid her hand on him at length, and bade him

hang his weapons on the wall. He can but hope to remain a passive

spectator for a few years more of that vast stirring of the Latin

peoples which he has so much contributed to bring about.

His last active effort was the delivery of three lectures at Berlin in

the spring of 1905. He has always avoided public lectures as much as

possible. His poor voice and comparative nervousness make the work

unattractive. A severe attack of influenza sapped his strength in the

winter of 1905, and he has been unable to eliminate its unpleasant

consequences. But the opportunity of enforcing his gospel in the capital

of the Empire, where the Virchows and Du Bois-Reymonds had ruled so long

made him deaf to the counsels of prudence. He chose as his theme the

controversy in regard to evolution, and gave three spirited lectures.

The changed world came home to him vividly enough. A vast and

enthusiastic gathering of admirers in one of the finest halls in Berlin:

outside, at the very door, his clerical opponents distributing handbills

that offered a choice selection of the most venemous attacks on his

person and work. The lectures are now available in English under the

title of _Last Words on Evolution_.

The present state of Haeckel’s health forbids him to hope that he will

do any more active work. As I write, he lies in his villa, in “Haeckel

Street,” overlooking the handsome Zoological Institute, which he raised,

and the little university town that he has made known to the world.

Beyond the graceful hills that cradle it, he sees the dark waves tossing

that he has worked so hard to set in motion. In Germany the alliance of

the Emperor with the Catholics saddens him, but—the Jesuits are

accepting evolution, over the fresh grave of Virchow. Abroad his ideals,

even his ideas, are making triumphant progress. He thinks of the vast

changes that have taken place since he stood out, almost alone, reckless

of all but honour and truth, at the Stettin Congress in 1863. “Das Leben

ist schön,” he still repeats. What will men say of _him_ when the lines

of history draw in, and the critic will have the proper perspective? I

believe no great worker ever thought less about it. Through inexorable

labour, through constant sacrifice, through storms of painful obloquy,

he has lived his ideals, if he has made mistakes—been mortal. Those

ideals are an enduring contribution to the good. The first, the motto of

his young days, was _Impavidi progrediamur_—“Let us march on

fearlessly.” The second, the motto of his later years, was: “The good,

the true, and the beautiful, are the ideals, yea the gods, of our

Monistic philosophy.”

------------------------------------------------------------------------

Bibliography

The following is a list of the works by Professor Haeckel that have been

translated into English:—

“The History of Creation.” Translation (in two vols., edited by E.

Ray-Lankester) of the _Natürliche Schöpfungsgeschichte_. 1876. [4th

edition, 1892.]

“Freedom in Science and Teaching.” Translation (with preface by T. H.

Huxley) of the _Freie Wissenschaft und Freie Lehre_. 1879.

“Report on the Deep-sea Medusæ dredged by H.M.S. _Challenger_.” Zoology

series, vol. iv. [330 pp. and 2 plates.] 1882.

“The Pedigree of Man.” Translation (by E. B. Aveling) of the _Gesammelte

Populäre Vorträge_. 1883.

“A Visit to Ceylon.” Translation (by Clara Bell) of the _Indische

Reisebriefe_. 1883.

“Report on the Radiolaria collected by H.M.S. _Challenger_.” Zoology

series, vol. xviii. [2,000 pp. 4to and 140 plates.] 1887.

“Report on the Siphonophoræ collected by H.M.S. _Challenger_.” Zoology

series, vol. xxviii. [380 pp. 4to and 50 plates.] 1888.

“Report on the Deep-sea Keratosa collected by H.M.S. _Challenger_.”

Zoology series, vol. xxxii. [92 pp. and 8 plates.] 1889.

“Planktonic-studies.” Translation (by S. W. Field) of

_Plankton-studien_. 1891.

“The Confession of Faith of a Man of Science.” Translation (by J.

Gilchrist) of _Monismus_. 1894.

“The Last Link.” Translation (by Dr. Gadow) of the Cambridge Lecture on

Evolution. 1898.

“The Riddle of the Universe.” Translation (by J. McCabe) of _Die

Welträthsel_. 1901. [6th edition, 1905.]

“The Wonders of Life.” Translation (by J. McCabe) of _Die Lebenswunder_.

1904.

“The Evolution of Man.” Translation (by J. McCabe) of the 5th edition of

the _Anthropogenie_. [905 pp., 512 illustrations, and 30 plates.] 1905.

“Last Words on Evolution.” Translation (by J. McCabe) of _Der Kampf um

den Entwichelungs-Gedanken_. 1906.

--------------

COMPLETE LIST OF PROF. HAECKEL’S WORKS

(EXCLUSIVE OF ARTICLES IN SCIENTIFIC PERIODICALS, ETC.)

“De telis quibusdam Astaci fluviatilis.” Dissertatio inauguralis

histologica. [48 pp. and 2 plates.] 1857.

“De rhizopodum finibus et ordinibus.” Diss. pro venia legendi

impetranda. 1861.

“Die Radiolarien (_Rhizopoda radiaria_).” [Vol. i., 572 pp. fol.; vol.

ii., 35 plates.] 1862.

“Beiträge zur Naturgeschichte der Hydromedusen. Die Familie der

Rüsselquallen (_Medusæ Geryonidæ_).” [204 pp. and 6 plates.] 1865.

“Generelle Morphologie der Organismen.” [Vol. i, xxxii and 574 pp. and 2

plates; vol. ii., clx and 462 pp. and 8 plates.] 1866.

“Natürliche Schöpfungsgeschichte.” [568 pp. and 9 plates.] 1868. [10th

edition, 1902.]

“Uber die Entstehung und den Stammbaum des Menschengeschlechts.” 1868.

“Zur Entwickelungsgeschichte der Siphonophoren.” Crowned by the Utrecht

Society of Art and Science. [124 pp. 4to and 14 plates.] 1869.

“Uber Arbeitstheilung in Natur und Menschenleben.” 1869.

“Das Leben in den grössten Meerestiefen.” 1870.

“Biologische Studien.” [184 pp. and 6 plates.] 1870.

“Die Kalkschwämme (_Calcispongiæ_).” [Vol. i., xvi and 484 pp.; vol.

ii., 418 pp.; vol. iii., 60 plates.] 1872.

“Anthropogenie, oder Entwickelungsgeschichte des Menschen.” [xviii and

732 pp., 12 plates, and 210 woodcuts.] 1874.

“Arabische Korallen.” 1875.

“Die Perigenesis der Plastidule oder die Wellenzengung der

Lebenstheilchen.” 1876.

“Studien zur Gastræatheorie.” [270 pp. and 14 plates.] 1877.

“Die heutige Entwickelungslehre im Verhältnisse zur

Gesammtwissenschaft.” 1877.

“Freie Wissenschaft und Freie Lehre.” [106 pp.] 1878.

“Das Protistenreich.” [104 pp., 58 woodcuts.] 1878.

“Gesammelte populäre Vorträge aus dem Gebiete der Entwickelungslehre.”

[181 pp., 50 woodcuts.] 1878.

“Das System der Medusen.” [xxx and 672 pp. and 40 plates.] 1879.

“Gesammelte populäre Vorträge.” Vol. ii. [164 pp. and 30 woodcuts.]

1879.

“Das System der Acraspeden.” [312 pp. and 20 plates.] 1880.

“Metagenesis und Hypogenesis von _Aurelia aurita_. [36 pp. and 2

plates.] 1881.

“Die Tiefsee-Medusen der Challenger-Reise und der Organismus der

Medusen.” [205 pp. and 32 plates.] 1881.

“Indische Reisebriefe.” [380 pp.] 1882.

“Die Naturanschauung von Darwin, Goethe, und Lamarck.” 1882.

“Grundriss einer allgemeiner Naturgeschichte der Radiolarien.” [248 pp.

4to and 64 plates.] 1887.

“Die Acantharien oder actipyleen Radiolarien.” [32 pp. and 12 plates.]

1888.

“Die Phæodarien oder cannopyleen Radiolarien.” [32 pp. and 30 plates].

1888.

“Plankton-studien.” [112 pp.] 1890.

“Der Monismus als Band zwischen Religion und Wissenschaft.” 1892.

“Zur Phylogenie der Australischen Fauna.” 1893.

“Die Systematische Phylogenie.” [3 vols., 1,800 pp.] 1894.

“Die Amphorideen und Cystoideen.” 1896.

“Ueber unsere gegenwärtige Kenntniss vom Ursprung des Menschen.” 1898.

“Die Welträthsel.” [473 pp.] 1899.

“Aus Insulinde.” [260 pp., 80 illustrations.] 1901.

“Anthropogenie.” [5th edition, 991 pp., 30 plates, and 512

illustrations.] 1903.

“Kunstformen der Natur.” [100 large coloured plates and text.] 1904.

“Die Lebenswunder.” [567 pp.] 1904.

“Ernst Haeckel’s Wanderbilder.” [Series of prints of his oil-paintings

and water-colour landscapes.] 1905.

“Der Kampf um den Entwickelungs-Gedanken.” [112 pp. and 4 plates.] 1905.

------------------------------------------------------------------------

Index

A

Adam’s Peak, Haeckel on, 244

Adaptations, embryonic, 228

Adaptation to environment, 119

Adickes, Professor, 304

Adriatic, visit to the, 257

Æsthetic element in Haeckel, 83

Affinities of animals, 233

Agassiz, 229

〃 , on creation, 128

Alexander, Karl, Grand Duke of Weimar, 254

Algeciras, Haeckel at, 252

Algiers, Haeckel arrested in, 259

Allmers, Hermann, 85

Alpine salamander, the, 221

America, the discovery of, 20

Amphioxus, the, 274

_Amphoridea and Cystoidea_, the, 291

Angelo, Michael, paintings of, 15

_Anthropogenie_, the, 279, 309

Anthropological critics, Haeckel’s, 283

Arabia, coral-fishing in, 257

Archeopteryx, the, 167, 223

Arctic hare, the, 119

Art and mathematics, 216

_Art-forms in Nature_, the, 26, 293, 311

Artificial selection, 117

Artistic gifts of Haeckel, 83-4

Asia Minor, travels in, 257

_Aspects of Nature_, 46

Association of Monists, 319

Athletic festival, Haeckel at the, 173

Atom, the, 212

_Aus Insulinde_,308

B

Bacilli, the, 206

Bacteria, the, 180

Basedow, 32

Belligemma, 258

Berlin, Haeckel’s criticism of, 30

〃 , lectures at, in 1905, 319

Berthelot, 318, 319

Björnsen, B., 318, 319

Bible, the, 126

Biogenetic law, the, 219

Bird, evolution of the, 223

Birth of Haeckel, 29

Birthday, celebration of Haeckel’s sixtieth, 297

Birthday, celebration of Haeckel’s seventieth, 314

Birthdays, real determination of, 102

Bismarck, esteem of, for Haeckel, 298

Bleek, Professor, 37

Bose, Countess, liberality of, 255

Botany, Haeckel’s early love of, 36

Braun, Alexander, 52

Bressa prize, the, 300

Bronn, 128

Bruno, Giordano, 16

Butterfly, development of the, 227

C

Calcispongiæ, the, 272

〃 , embryology of the, 273

Calumniation of Haeckel, 266, 268

Cambridge, Haeckel at, 300

Canaries, voyage to the, 240

Catastrophic theory, the, 108

Catholicism in Germany, 301

〃 , lower features of, 134

Cell, discovery of the, 56, 65

〃 , nature of the, 178

Cell-soul, the, 161

_Cell-souls and Soul-cells_, 286

Cell-state, the, 57

〃 , man as a, 160

Cell-theory, the, and Darwinism, 178

Cenogenesis, 231

Ceylon, Haeckel’s life in, 33

〃 , visit to, 258

_Challenger_ expedition, the, 287

Chromacea, the, 180

_Chrysaora_, 176

Classical studies, 35

Classification, Haeckel’s reform of, 233-4

Colombo, Haeckel at, 258

Columbus, 16, 20

Compromise, Virchow advocates, 163-171

Congresses, founding of scientific, 144

Consciousness, Virchow on, 163

Copernicus, 16

_Corals of Arabia_, the, 257

Craw-fish, study of the, 77

Creation, difficulties of, 98

Crystal, life of the, 203

Cuvier’s theory of creation, 107

_Cyanea_, 176

D

Dalmatia, visit to, 257

Darwin’s condemnation of Virchow, 311

Darwin, Haeckel’s intercourse with, 241

〃 in South America, 103

〃 on botany, 39

〃 , physiognomy of, 146

〃 , reasoning of, 117-20

〃 , theism of, 124

Darwinism accepted by Haeckel, 133

“Dead” matter, 203

Death of Haeckel’s wife, 184

_Deep-sea Medusæ_, the, 287

Degree, dissertation for the, 77

Dennert, Prof., 304

_Descent of Man_, the, 243

Design, abandonment of, 169

_Desmonema Annasethe_ the, 186

Dissection, 55

Division of labour, essay on, 249

Doctorates held by Haeckel, 24

Dogmatism, alleged, of Haeckel, 23, 218, 303

Dohrn, Anton, 59

Down, Haeckel’s visit to, 241

Dubois, Eugen, 167, 309

Du Bois-Reymond, E., 135

E

Education, Haeckel on elementary, 34

Egypt, visit to, 257

Ehrenberg, 78, 96

_Elective Affinities_, the, 45

Embryonic diagrams, Haeckel’s early, 268

Embryology, 57

〃 and evolution, 170

〃 in Haeckel’s works, 268, 280

_Embryology of the Siphonophoræ_, the, 248

Emotional character of Haeckel, 186-7

Engelmann, 173

_Erica cinerea_, search for the, 37

“Ernst Haeckel Street,” 43

Essay, Haeckel’s first, 71

_Essays on the Theory of Evolution_, 287

Evolution, internal law of, 130

〃 of species, 114

_Evolution of Man_, the, 279, 310

“Exact” scientists, 131, 132, 164

Extinct species, 107

Extinction of species, 112, 119

F

Family of Haeckel, the, 253

Filippo de Filippi, 76

Fish, nature of the, 219

FitzRoy, Captain, 103

_Flora Hallensis_, contribution to the, 37

Fol, 245

_For Darwin_, 230

_Force and Matter_, 201

Forms, science of, 190-2

Form-unities, 207

_Free Science and Free Teaching_, 285

Freedom of research, 75, 156

French rule in Prussia, 25

Freytag, Gustav, 21, 29

Friedenthal, 310

Frog, the, 219

〃 , evolution of the, 222

G

Galapagos Islands, Darwin in the, 116

Galileo, 16

Gandtner, 37

Gastræa, the, 276

Gastræa-theory, the, 278

Gastrula, the, 277

Gegenbaur, Karl, 62-4

Genealogical tree of organisms, 149, 152, 226

_Generelle Morphologie_, the, 188

Genius, 102

Geology, 108

〃 and evolution, 167

_Geryonidæ_, the, 177

Gill-slits in the human embryo, 269

Giltsch, Adolph, 289

Glyptodon, the, 113

Gneisenau, 29

God, Haeckel’s conception of, 133-5, 236

〃 , the new conception of, 19

Goethe, 17

〃 , evolution in works of, 238

〃 on morphology, 190-1

Goethe’s influence on Haeckel, 41-6

Gramzow, Otto, on Haeckel, 295

Greece, visit to, 257

Greeff, Richard, 244

Greek, Haeckel’s knowledge of, 36

_Green Henry_, 45

Gryptotherium, the, 113

Gude, Karl, 37

H

Haeckel abandons theology, 75, 133

〃 , æsthetic element in, 83, 185

〃 , ancestry of, 21

Haeckel and Darwin, 127, 241

〃 〃 Gegenbaur, 62

〃 〃 Müller, 69

〃 〃 Virchow, 163, 284

〃 as a physician, 80

〃 〃 traveller, 256

〃 at Down, 241

〃 at Stettin, 146

〃 , birth of, 29

〃 , boyhood of, 31-3

〃 , early education of, 34-50

〃 embraces evolution, 137

〃 , family of, 253

〃 , first marriage of, 100

〃 goes to Jena, 100

〃 , honours awarded to, 10, 298, 300

〃 in Heligoland, 69

〃 in Italy, 82

〃 in the Canaries, 240

〃 , medical training of, 76

〃 , parents of, 28

〃 , personal charm of, 146

〃 , political views of, 301

〃 , recent popularity of, 295

〃 reconstructs zoology, 181

〃 , religion of, 230

〃 , second marriage of, 253

〃 , university training of, 54

Haeckel, Councillor Karl, 29, 32

〃 , Walter, 83

_Haeckel’s Critics Answered_, 307

Heine, 21

Heligoland, the first journey to, 69

Heliosphæra, the, 141

Heliozoa, the, 258

Heredity, a theory of, 284

Hertwig, Oscar, 257

Hertwig, R., 189

Histology, 56

_History of Creation_, the, 262

History, unity of, 44

Holy Land, travels in the, 259

Horton, Dr., on Haeckel, 312

Hüffer, Hermann, 21

Humboldt, 46, 144

〃 foundation, the, 31

Huschke, Agnes, 253

Huxley on the origin of man, 180

I

Illustrations, charges against Haeckel’s, 267-8

Imagination in science, 200

Independence, Haeckel’s early sense of, 31

_Indische Reisebriefe_, the, 261

Individuality, nature of, 207, 211

〃 , stages of, 209

Infusoria, the, 78

International Congress of Freethinkers, the, 316

_Irene_, 176

Ischia, journey to, 87

Italy, appreciation of Haeckel in, 299

〃 , Haeckel’s first visit to, 82

J

Java, ape-man of, 167, 308

〃 , voyage to, 260, 308

Jena, 42

〃 , Haeckel’s first visit to, 50

_Jugend_, Haeckel number of, 315

Jump, Haeckel’s record, 173

Jurist, Haeckel as a, 22

K

Keferstein, Professor, on Darwinism, 148

Keller, Gottfried, 45

Kepler, 16

Kölliker, Albert, 56

Königsberg, Congress at, 99

Kopf, Professor, bust of Haeckel by, 299

Kükenthal, 43

_Kulturkampf_, the, 284

L

Lamprey, the, 181

Lancelet, the, 181

Lang, Professor A., on Haeckel, 300

Lange, F. A., 154

Language, evolution of, 150

Lanzarote, Haeckel at, 245

_Last Link_, the, 300

_Last Words on Evolution_, the, 320

Latin, Haeckel’s knowledge of, 36

〃Law of development,” 129

Law, training for the, 23

Lawyers in Haeckel’s family, 22

Lemur, the, 181

Leydig, Frantz, 56

Lichtenstein, Professor, 71

Life, earliest forms of, 151

〃 , origin of, 124

Linné, classification of, 105

Literary production of Haeckel, 299

Lizard, evolution of the, 222

_Lizzia Elizabethæ_, the, 185

Lloyd-Morgan, Professor, 307

Lodge, Sir Oliver, 307

Loofs, Professor, 305

Love of nature in Haeckel, 31

Lyell’s reform of geology, 109

M

Macrauchenia, the, 112

Mammoth, the, 106

Man, creation of, 126

〃 , evolution of, 180-1, 279

Man’s genealogical tree, 181

Marine animals, study of, 60

Marriage, Haeckel’s first, 100

〃 〃 second, 253

Mastodon, the, 112

Materialism and idealism, 83, 154

Mathematical types of form, 214

Matter, potentialities of, 204

Mechanical embryology, 249

Medical studies of Haeckel, 72

Medusæ, the, 174, 246

Megatherium, the, 106, 112

Merseburg, 30

Messina, 90

Metaphysics, Haeckel’s views on, 304

Method, analysis of scientific, 200

Meyer, Frau, 253

Microscope, beauty in the, 92

Miklucho-Maclay, 245

Miracles in modern Italy, 134

“Missing link,” the, 308

_Mitrocoma Annæ_, the, 185

Moleschott, 83, 154

Monera, the, 179

Monism, 73, 203, 217

_Monism as a Connecting Link_, the 292

_Monograph on the Calcispongiæ_, the, 272

_Monograph on the Medusæ_, the, 185

_Monograph on the Monera_, the, 182

_Monograph on the Radiolaria_, the, 100, 138

Monophyletic theory of life, the, 158

Morphology, the science of, 190

〃 , history of, 199

Mosaic story of creation, 105, 108

Mottoes, Haeckel’s, 321

Mouth, the primitive, 275

Müller, Fritz, 230

〃 , Johannes, 65-8

〃 〃 , death of, 80

Müller-net, the, 69

Munich, Haeckel and Virchow at, 157, 283

Murray, Sir John, 259

N

Naples, Haeckel at, 87

Natural law, relativity of, 232

〃 , philosophy, 48

Natural selection, 119-120

Nature and God, 20

_Naturalist’s Voyage round the World_, 46

_Nausicaa phæacum_, the, 185

Nineteenth century, work of the, 18

Nomenclature, scientific, 185

Nucleus, the, 179

O

Oken, L., 144

〃 on embryonic development, 224

Ontogeny, 231

Optimism of early Darwinians, 166

_Origin and Evolution of the Sense-organs_, 286

_Origin of Species_, the, 122

Over-individuals, 247

_Ovi di mare_, 93

Ovum, the, 268, 273

〃 , discovery of the, 58

P

Paleontology, 149

Palingenesis, 231

Pampas, fossil remains in the, 112

Paris, Freethought Congress at, 319

Pathology, Virchow’s reform of, 57

Paulsen, Professor, 304

Peak of Teneriffe, Haeckel climbs the, 250

Pelagic sweepings, 70

_Pemmatodiscus gastrulaceus_, the, 277

Persephone-impulse, the, in Haeckel, 256

Philosophy and observation, 156

〃 and science, 202

Philosophy, Haeckel’s work in, 305

Phylogeny, 231

Physician, Haeckel as a, 80

〃 , qualities of the, 53

Pithecanthropus, the, 167, 308

Plankton, 70

_Plankton-studies_, 290

Plant or animal, priority of the, 205

Plastidules, 284

Political views of Haeckel, 301

Polyps, 175

Popular works, why written, 262

Potsdam, Haeckel’s birthplace, 30

Private teacher, Haeckel as, 100

Profession, choice of a, 53

Professor of Zoology, Haeckel appointed, 100

Progressive evolution, 168

Promorphology, 215

Protestant religion, character of the, 134

Protists, the, 206

Protistology, 206

Puerto del Arrecise, 250

Pupa, the, 227

R

Rabl, Professor, 311

Radiolaria, the, 93, 289

〃 , shells of the, 95

〃 , system of the, 140

Rapallo, Haeckel at, 313

Realism of Haeckel, 304

_Report on the Deep-sea Keratosa_, the, 290

_Report on the Radiolaria_, the, 289

_Riddle of the Universe_, the, 22, 291, 301-7

Ritter, Paul von, donation of, 255, 299

Riviera, marine study on the, 76

Rocks, formation of the, 109

Roederer, 25

Romance nations, religion of the, 134

Rome, Freethought Congress at, 316

Roux, Professor, 249

Russia, travels in, 259

S

Scandinavia, visit to, 257

Schiller, 42, 43

Schleiden, M. J., 47

Schleiermacher, 27-8

Schmidt, Dr., 307

School-days at Merseburg, 34

Schopenhauer on Darwinism, 132

Schwann, Theodor, 65

Scientific method, variations of, 48

_Scilla bifolia_, search for the, 51

Scotland, visit to, 257, 259

Sea-urchin, fertilisation of the, 257

Seebeck refuses Haeckel’s resignation, 254

Semon, 43

Sergi, Professor, 319

Sethe, Anna, 81, 100

〃 , Bertha, 26

〃 , Christian, 21, 22

〃 , Christoph, 21, 25

Siphonophores, the, 246

Social Democrats, the, 285, 301

Soul, unity of the, 161

Spain, Haeckel’s visit to, 252

Specialism in science, 48

Species, early difficulties about, 37-8

〃 idea of fixity of, 105

Sponge, nature of a, 271

Sponges, Haeckel’s study of the, 270

Spontaneous generation, Haeckel’s early opposition to, 77

Spontaneous generation, possibility of, 136

Stereometric structures, 215

Stephen, Sir Leslie, 307

Stettin, Congress of, 145

Stocks, animal, 211

Strauss, 83

Struggle for life, the, 119

_Studies of the Gastræa-theory_, the, 277

Sumatra, Haeckel in, 260

Superstition in Italy, 315

_System of the Medusæ_, the, 287

_System of the Siphonophoræ_, the, 249

_Systematic Phylogeny_, the, 291

T

Tadpole, the, 220

Teeth in young parrots, 223

Teneriffe, 240

Terminology created by Haeckel, 36

Theological critics of Haeckel, 298, 305

Theology, Haeckel’s rejection of, 75-6

_Tiara_, 176

Tierra del Fuego, 103

_Tissues of the Craw-fish_, the, 77

Tjibodas, 260

Training, early, of Haeckel, 32

Transformism, 111

Translations of Haeckel’s works, 294

“Travel Pictures,” 84

Travels of Haeckel, 256

Tree-frog, the, 119

U

Unicellular animals, 94, 98

Unity of nature, the, 235

Unnucleated organisms, 180

Utrecht Society of Art and Science, 248

V

Venus of Milo, the, 191

Vienna, medical studies at, 80

Villefranche, fishing at, 76

Virchow, Rudolf, 56, 72

〃 at Stettin, 153-171

〃 Haeckel’s conflict with, 74

〃 on the evolution of man, 311

_Visit to Ceylon_, the, 259

Vital force, the, 135

Vogt, 83, 154

Volger, Otto, 167

W

Wallace, A. R., and Darwin, 123

Weimar, Grand Duke of, 254

_Wonders of Life_, the, 292, 313

Works, number of Haeckel’s, 299

Worm, evolution of the, 276

Würtzburg, Haeckel at, 54

〃 , invitation to the University of, 253

Z

Zipangu, 20

Zoological Institute, the, 42

〃 philosophy, 194

〃 Station at Naples, 59

Zoology, reconstruction of, by Haeckel, 24

〃 , the old and the new, 60

UNWIN BROTHERS, LIMITED, THE GRESHAM PRESS, WOKING AND LONDON.

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● Transcriber’s Notes:

○ Missing or obscured punctuation was silently corrected.

○ Typographical errors were silently corrected.

○ Inconsistent spelling and hyphenation were made consistent only

when a predominant form was found in this book.

○ Text that:

was in italics is enclosed by underscores (_italics_).

Haeckel · 第 8 / 8 章