ANDREW ELLICOTT.

WILLIAM BARTON, Esq.

I became acquainted with the late Dr. Rittenhouse, in the sixteenth year

of my age, being first introduced to him, after he removed to the city

of Philadelphia, by the late Joseph Galloway, Esq. and my Father; both

of whom were sincerely attached to him, not only on account of his

scientific talents and acquirements, but for his public and private

virtues. From that period, to the end of his life, we enjoyed an

uninterrupted friendship.

In my scientific pursuits, I was frequently aided by him; particularly,

in that part which relates to Astronomy, with which he was better

acquainted, both in theory and practice, than any other person in this

country; and when he ceased to calculate the Almanacks for the middle

states, at his request I continued them several years.

In the years 1784 and 1785, Dr. Rittenhouse and myself were engaged in

determining the boundaries between this commonwealth and the state of

Virginia; and in the year 1786, in determining the boundary between this

commonwealth and the state of New-York. In those arduous employments, I

had many opportunities of witnessing his address in overcoming the

numerous difficulties we necessarily had to encounter, in the then

wilderness, in which our operations were performed.

As a gentleman of general science, Dr. Rittenhouse would have held a

respectable rank in any country; but as a Mechanist and Astronomer, he

has had but few equals. It has been frequently asked,—why he has not

left more evidences of his talents, for the use of posterity? In answer

to this question, it is to be observed, that almost from his childhood,

he had a complaint in his breast; which increased so much with his age,

that for the last fifteen years of his life,—and in which he had the

most leisure for composition,—it was painful for him to support the

position a person must occupy, when writing. This circumstance I have

frequently heard him lament, in a feeling manner; as it prevented him

from answering letters with promptitude, and writing to his friends as

often as he wished.

Though Dr. Rittenhouse had not the advantage of a liberal education, he

wrote not only correctly but with ease: he made himself master of the

German language, to which he was partial: and of the French, so far as

to read the scientific works in that tongue, with facility.

As an Husband, and a Father, he might be taken as an example and a

pattern, in the most virtuous community that ever existed. He was a good

Citizen,—and warm and sincere in his friendships; and though reserved in

large mixed companies, he was cheerful and communicative, when in a

small circle of his friends. His mind appeared formed for contemplation,

and therefore not calculated for the noisy and busy scenes of this

world: from this placid turn of mind, he had a singular antipathy to all

mobs and riots; and I recollect to have heard him speak of the riots of

the Paxton-boys, (as they were called,) with greater acrimony than on

any other occasion,—more than twenty years after they happened. Being a

philanthropist by nature, he wished the happiness and welfare of the

whole human race; and viewed slavery, in all its forms, with feelings of

horrour: from this attachment to the happiness, the rights, and the

liberty of his fellow-creatures, he was led to take an active and useful

part in favour of our revolution, which separated the colonies (now the

United States,) from the mother-country.

His contemplative mind naturally carried him to piety; but his

liberality was so great, that he did not appear to give a very decided

preference to any one of the sects into which Christianity is divided:

he practised the morality of a sincere Christian, without troubling

himself about the dogmas of the different churches.

His manners were plain and unassuming, though not without a sufficient

share of dignity; and, from a consciousness of his own talents, he did

not envy those of others.

It has too frequently happened, for the honour of science and

literature, that men of great and commanding talents, have been

obstinately dogmatical, and impatient of contradiction;—of those

blemishes, Dr. Rittenhouse had not the least tincture.

To conclude,—if Dr. Rittenhouse was not the greatest man, of the age,

his character has fewer blemishes in it; and, if his talents were not of

that kind which are usually considered the most _brilliant_, they

were—like those of WASHINGTON—of the most _solid_ and _useful_ order.

_Some particulars concerning the Residence, the Tomb, &c. of Copernicus:

communicated to the late Dr. Rittenhouse, Pres. A. P. S. by the Earl

of Buchan._

“In the year 1777,” says his Lordship, “my learned friend John

Bernouilli, of Berlin, on one of his tours having happened to meet with

the Bishop of Warmia,[A53] in the Abbey of Oliva, near Dantzic, was

informed by that prelate, that he had the pleasure to discover, in the

Cathedral of Frauenburg, the Tomb of Copernicus, so long fruitlessly

sought for.

-----

Footnote A53:

An uncle of Copernicus was Bishop of _Warmia_, (in Ermeland, a little

province of Poland,) and gave him a canonry in his cathedral of

Frawenberg, a city in ducal Prussia, situated on the Frische Haff, at

the mouth of the Vistula: it was there he began to devote himself to

astronomy, at the age of twenty-eight years. His great work, _De

Revolutionibus Orbium Cœlestium_, was completed about the year 1530:

but his apprehensions of meeting with persecution from the bigotted

ignorance of the age, in consequence of the system he therein

promulgated, deterred him from publishing it until thirteen years

after that period; and it is supposed that the agitation of his mind,

occasioned by its appearance in the world, produced the sudden

effusion of blood, which terminated his life on the 24th day of May,

in the year 1543. W. B.

-----

“In the year 1778, Mr. Bernouilli having occasion to pass through

Frauenburg, on his road to St. Petersburg, did not fail to visit the

Cathedral, and explore the Monument of Copernicus. Acquainted with no

one in the place, he was yet lucky enough to meet with a Canon, in the

street, whose countenance invited him to accost him on this subject, and

who proved very attentive to his researches. He informed him, that as

for the Ashes of Copernicus, they were mingled in the charnel-house with

the bones of the fraternity of the Canons; but that, for the Tombstone

of the Philosopher, it was no more than a tablet of marble, simple, as

the mode was of his days, and had no other inscription than these

words—NIC. COPERNICUS, THOR:—-That this tablet had remained hidden for

some time, in rubbish; and when recovered, was placed in the

chapter-house, till a more suitable place should be destined for it. Mr.

Bernouilli expresses his regret to me, that he had not urged the Canon

to indulge him with a sight of this Stone; and to look for a further

inscription, to support the assertion of Gassendi, who mentions (page

325), That the Bishop Martin Cromer, an eminent Polish historian, caused

a mural marble monument to be inscribed and erected to the memory of

Copernicus, with the following inscription:

D. O. M.

R. D. NICOLAO COPERNICO,

Torunensi, Artium et

Medicinæ Doctori,

Canonico Warmiensi,

Præsenti Astrologo, et

Ejus Disciplinæ

Instauratori;

MARTINUS CROMERUS,

Episcopus Warmiensis,

Honoris, et ad Posteritatem

Memoriæ, Causâ, posuit;

M. D. L. X. X. X. I.

“Gassendi adds, that this Monument was not erected until thirty-six

years after the death of Copernicus, which does not agree with this date

of 1581.

“The good Canon informed Bernouilli, that he was lodged in the apartment

of Copernicus, of which he was very proud; and invited the Prussian

Philosopher to visit him in that place, which he accordingly did; and

was shewn by the Canon another place, above the Dormitories, which had

been used by Copernicus as his study and observatory, in which the Canon

had a portrait of that eminent man, concerning the original of which he

would not say. This little Observatory had an extensive view; but when

Copernicus had occasion for one more extensive, he was wont to observe

on the gallery of the steeple, which communicates with this place.

“Charmed with these classic footsteps, Bernouilli forgot to look at the

Monument on the chapter-house, above mentioned. In a repository

adjoining to the Cathedral, the Canon shewed Bernouilli the remains of a

hydraulic machine said to have been invented and used by Copernicus. The

construction seemed interesting, but in great disrepair; and Bernouilli

had not leisure to examine it particularly. The use of the machine was

to force and convey water into the most elevated apartments of the house

of the Canons, who are now under the necessity of having it fetched from

a distance, from the lower Town.”

“I remember to have seen (says Bernouilli), in some old German Journal,

that the Library of the ancient town of Konigsberg contained some books,

chiefly mathematical, which were part of the Library of Copernicus; and

also his Portrait, which had been purchased at Thorn, where the remains

of his family still possessed the house in which he was born, as late as

the year 1720. In P. Freher’s _Theatrum Virorum eruditorum_, there is a

Chronostick on the year of Copernicus’s death, 1543. p. 1447.

eX hoC eXCessIt trIstI CopernICVs eVo,

IngenIo astronVM et CognItIone potens.

“In the above mentioned book, p. 1442, there is a neat little Print of

Copernicus. In Hartknoch’s _Alter und newes Preusen_, here is a print of

Copernicus, from a picture on wood which hangs in what they call his

Cenotaph, at Thorn; and which represents him kneeling, in his

canonicals, before a Crucifix;—and below this portrait are these

_sapphic_ verses:

Non parem Pauli gratiam requiro,

Veniam Petri neque posco; sed quam

In Crucis ligno dederas sationi,

Sedulus oro.

(_a little lower_)

Nicolao Copernico, Thoruniensi, absolutæ subtilitatis mathematico, ne

tanti viri apud exteros celeb. in sua patria periret memoria, hoc

monumentum positum.

Mort. Varmiæ, in suo Canonicatu, Anno 1543—

die 4 + ætatis LXXIII.

(_lastly, lowest._)

Nicolaus Copernicus, Thoruniensis, Mathematicus celeberrimus.

“This Monument of Copernicus was erected by Melchior Pyrnesius, M. D.,

who died in 1589.

“On the same altar-piece, or picture, is represented the portrait of

John D’Albert, with the following inscription.

Illustris Princeps Dn. Joh. Albertus, Polo. Rex, apoplexiâ hic Thoru.

mortuus, Anno 1501, die 17 Maii, ætat. 41; cujus viscera hic sepulta,

Corpore Craco translato; Reg. Ann. VIII.

“Upon the whole,” concludes Lord Buchan, “it appears the likeness I

send, of _Copernicus_, is most to be depended on; and, as such, I

flatter myself it will be an _Heir-loom to infant America_! Concerning

Napier, it is needless for me to enlarge; the learned Dr. Minto having

enabled me to do justice to his memory.”

[Illustration]

Although the following particulars respecting Dr. Rittenhouse were not

communicated by the writer, Professor Barton, until it was too late to

give them a place in the body of the work, the Author nevertheless is

glad to have an opportunity of presenting to the public, even at the

close of his book, the interesting circumstances this communication

contains.

As Optics were one of his favourite studies, so he at one time

contemplated a course of public, and I think popular, lectures on this

beautiful and important branch of physics. On this subject he mentioned

to me his intention in the winter of 1785-1786. The enthusiasm, indeed,

with which he developed his design, and I may add the warmth of zeal

with which his manner at the time inspired me, I can never forget. And,

indeed, I cannot but regret, that our excellent friend never made his

appearance in publick, as a LECTURER. As such, he would, unquestionably,

have greatly advanced the love and the knowledge of natural philosophy

in the United-States. He may, perhaps, have wanted some of the

qualifications of a popular teacher. He would not have aspired to

finished eloquence of style: to the eloquence of gesture and of manner,

he was still more a stranger. But there is an eloquence of physiognomy,

which Mr. Rittenhouse most eminently possessed. The modesty and amenity

of his manner would have effected much, whether his audience had been a

class of philosophers, or an assembly of ladies. Of his own discoveries,

and opinions, and theories, he would have always spoken with that sweet

and modest reserve, for which he was ever distinguished. He would have

dwelt with the most generous and ample enthusiasm upon the great

discoveries of Newton; and if, at any time, he could have forgotten that

impartial conduct, which it is the duty of the historian of a science to

observe, it would have been when he might have had occasion to defend

the theories of that great man, against the objections of succeeding and

minor philosophers.

In Physics, Newton was his favourite author. Of HIM he ever spoke with a

species of respect bordering upon veneration. He considered him as one

of those few great leaders in science whose discoveries and services can

never be forgotten: whose fame, instead of diminishing, is destined to

be augmented, with the progress of time. I had many opportunities of

being witness to the exalted opinion which he entertained of the

immortal British philosopher. He read Dr. Bancroft’s objections to some

parts of Sir Isaac’s theory of colours, with a firm conviction, that the

Newtonian principles were still unshaken: and I well remember, that he

once referred me to a paper which he had published, in one of our

magazines, in answer to some objections which the late Dr. Witherspoon

had urged against some of the theories of Newton.

It has been observed by a celebrated writer, that mathematicians in

general read but little of each other’s works. This remark, if I mistake

not, is very strongly illustrated in Mr. Rittenhouse. However it may

have been in his earlier age, I am confident that during the last

thirteen years of his life, when my intercourse with him was great, and

indeed but little interrupted; I am confident, that at this matured and

auspicious era of his life, our friend was not a laborious student. He

looked into many books, and he often passed quickly from one kind of

reading to another: from philosophy to poetry; from poetry perhaps to

philosophy again. His reading may be said to have been desultory. I have

little doubt that this rather irregular manner of reading was, in some

measure, the result of his extreme delicacy of constitution, which

rendered a more unvaried application to any one kind of reading, irksome

and oppressive. Often have I seen him lay down his book or pen, to

recline upon his sopha, the circumscribed flush upon his cheeks plainly

indicating the physical state of his feelings. A short repose would

enable him to return to his studies again.

Mr. Rittenhouse’s application to books, had, no doubt, been more regular

and constant in the earlier part of his life; before I knew him well, or

before I had accustomed myself to watch the progress of his mind. He

was, certainly, profoundly, acquainted with the Principia and other

writings of Newton, which he read partly in the original, and partly

through the medium of translation. And although, within the period of my

better acquaintance with him, his reading I have said, was not intense,

he suffered no important discovery in philosophy to escape his notice.

Although his own library was small, he had ample opportunities, through

the medium of the valuable library belonging to the Philosophical

Society, and other collections in Philadelphia, of observing the

progress of his favourite studies in Europe. He took much interest in

the discoveries of Mr. Herschel, whose papers he eagerly read as they

arrived from Europe: and I well remember the time (in 1785) when he was

engaged in reading Scheel’s work on Fire, which had recently appeared,

in an English dress. He then assured me, that some of this great Swedish

philosopher’s notions concerning the nature and the laws of heat, had

long before suggested themselves to his mind.

The chemical discoveries of Crawford and Priestley solicited some of Mr.

Rittenhouse’s attention, about the year 1785-1786, and for some time

after. The brilliant discoveries of Priestley, in particular, were not

unknown to him. Upon the arrival of this illustrious philosopher in

Philadelphia, in 1794, Mr. Rittenhouse stood foremost among the members

of the Philosophical Society in publicly welcoming the exiled

philosopher to the country which he had chosen as the asylum of his

declining years; and in expressing his high sense of his estimable

character, and of the vast accessions which he had brought to science. I

often met Dr. Priestley at the house of our friend. Their regard for

each other was mutual. It is to be regretted that their immediate

intercourse with each other could not be more frequent. Priestley had

unfortunately chosen the wilderness, instead of the capital or its

vicinity, as his place of residence: and Rittenhouse, alas! did not live

two years after the arrival of Priestley in America.

On the death of Mr. Rittenhouse, Dr. Priestley wrote me a letter of

condolence on the great loss which the publick had sustained; on the

irreparable loss which I, in particular, had suffered. When the Doctor

afterwards returned from Northumberland to Philadelphia, he discovered

much solicitude to know from me Mr. Rittenhouse’s religious sentiments,

and the manner and circumstances of his death; and he evinced no small

satisfaction in receiving from me that relation which I have already

given you, of the last hours, and of the last words, of one of the best

of men.

Mr. Rittenhouse had not studied natural history as a science: but to

some of the branches of this science he had paid particular attention;

and upon some of them he was capable of conversing with the ablest, and

the most experienced. In Botany, he was not acquainted with the

scientific or classical names: but the habits, and in many instances,

the properties of plants were known to him. I well recollect how great

were his pleasure and satisfaction, in contemplating the _Flora_ of the

rich hills of Weeling, and other branches of the Ohio, when I

accompanied him into those parts of our union, in the year 1785. In this

wilderness, he first fostered my love and zeal for natural history. Upon

his return from the woods, in the month of October, he brought with him,

as ornaments to his garden, many of the transmontain plants of the state

of Pennsylvania: and long before I knew that it grew wild in the

vicinity of Philadelphia, upon the banks of his native Schuylkill, he

had naturalized in his garden, the beautiful Silene virginica, which he

designated with the name of “Weeling Star.”

It is a fact, that in the last months of his life he devoted a good deal

of his time to an examination of the structure of the most important

organs of plants. Acquainted with that doctrine which forms the basis of

the sexual system, he was fond of examining plants during the period of

their inflorescence: and I remember, with what apparent pleasure, he

pointed out to me the tube in the styles of some of the plants which

grew in his garden.

He had made many observations upon the buds of trees, some of which I

think were new. I regret that the memorandums which he kept of these

observations have not been found among his papers.

Not fifteen days before his death, he had finished the perusal of a

German translation of Rousseau’s beautiful letters on Botany, which I

had put into his hands.

Mr. Rittenhouse, like Newton and many other men of great talents,

employed much of his time in the perusal of works on the subject of

natural and revealed religion. This was, I think, more especially the

case in the latter part of his life. Among other books which I could

mention, I well recollect that he read the _Thoughts_ of the celebrated

French philosopher Pascall: and he acknowledged, that he read them with

pleasure. But that pleasure, he observed to me, was diminished, when he

learned, what was often the state of Pascall’s mind:—a state of

melancholy and gloom: and sometimes even of mental derangement. At the

time of his death, the American Philosopher was engaged in the perusal

of Mosheim’s Ecclesiastical History: and he had just before finished the

perusal of the _Meditations_ of the Emperor Marcus Antoninus; that

excellent work, replete with the sublimest morality, and with much of a

sublime religion.

About three weeks before his death, I had put into his hands the first

volume of Dr. Ferguson’s _Elements of Moral and Political Science_. I

took the liberty of particularly directing his attention to the last

chapter of the volume: the chapter on the future state. He read it with

so much satisfaction, that he afterwards sent it to his elder daughter,

with a request that she would peruse it.

The benevolent dispositions of our friend were well known to you. You

have, doubtless, done justice to this portion of his character; yet

permit me to mention a few detached facts, which have came under my own

immediate notice, and the relation of which may serve to augment even

_your_ respect and veneration for Mr. Rittenhouse.

The year 1793 is memorable in the history of Philadelphia. During the

prevalence of the yellow fever, in the summer of that year, Mr.

Rittenhouse wrote to me a note requesting me to visit a number of poor

people, in his vicinity, labouring under the malignant fever; and making

it a condition of my attendance upon them, that I should charge _him_

for my services.

In the month of March of the same year, I had a good deal of

conversation with Mr. Rittenhouse, on the subject of penal laws. He did

not think that the late judge Bradford, whose essay on this subject he

greatly admired, and recommended to my perusal, was too lenient in his

views of the subject. He observed, that although he had often served on

juries, he thanked God, that he never had in any case where life and

death were immediately involved; observing, that his conscience would

_ever_ reproach him, if he had, in any instance, given his verdict for

death. “Of all murders (he added) _legal_ murders are the most horrid.”

He did not think that death ought to be the punishment for any crime.

The union of sensibility with benevolence is frequently observed. The

sensibility of Rittenhouse was exquisitely nice; perhaps, I might say,

it was somewhat morbid. In a conversation which I had with him on the

subject of the analogies between animals and vegetables, when I had

observed to him, that the further we push our inquiries into this

interesting subject, the more reason we have for supposing, that those

two series of living beings constitute, as many eminent naturalists have

supposed, but one vast family, he said it appeared so to him, but he

hoped it would never be discovered that vegetables are endowed with

sensibility. “There is, he observed, already too much of this in the

world.”

His religion was sublime and pure. It had no tincture of superstition or

credulity. Accustomed, from an early period of his life, to contemplate

the largest and the smallest objects of Creation; and with respect to

the former to view their arrangement and harmony in the construction of

a system of immeasurable extent; in these objects and in these places,

he beheld one of the revelations of our Creator. He could not be

insensible of the ills, infirmities, and miseries of human life, and

even of the life of inferior animals. But still he discovered, as he

often observed to me, the existence and even the dominion of much

benevolence through the world. He was wont to consider our benevolent

dispositions, and our virtuous affections, as among the strongest proofs

of the existence of a Creator. These dispositions, these affections, and

our intellectual powers, are the genuine emanations of a God.

Memoirs of the life of David Rittenhouse, LLD. F.R.S., late president of the American Philosophical Society, &c. · 第 63 / 68 题