CHAPTER III.

Count Rumford negotiates with Mr. Underwood on the subject of

Davy's appointment to the Royal Institution.--Terms of his

engagement communicated in a letter to Mr. Gilbert.--Davy

arrives, and takes possession of his apartments.--He

receives various mortifications.--He is elected a member

of the Tepidarian Society.--Is appointed Lecturer instead

of assistant.--He makes a tour in Cornwall with Mr.

Underwood.--Anecdotes.--His Poem on Spinosism.--His letter to

Mr. Gilbert, communicating a galvanic discovery.--He commences

his first grand course of lectures.--His brilliant success.--A

letter from Mr. Purkis.--Davy's style criticised.--His

extraordinary method of experimenting.--Davy and Wollaston

compared as experimentalists.--The style of Davy as a lecturer

and a writer contrasted.

It may be readily supposed that the prominent situation held

by Davy at Bristol, as well as the merited celebrity of his

writings, must have rendered his name familiar to all the leading

philosophers of the day. It were vain, therefore, to enquire

through what channel the echo of his fame first reached the ear of

Count Rumford;[34] it is sufficient to state that Mr. Underwood,

a gentleman ardently attached to science, and devoted to the

interests of the Royal Institution, was amongst the first to urge

the expediency of inviting him to London as a public lecturer. Mr.

Underwood, in a letter lately addressed to me from Paris, says, "In

consequence of several conversations with Count Rumford, on the

subject of Davy's superior talents, and the advantages that would

accrue to the Institution from engaging him as a lecturer, the

Count called upon me on the 5th of January 1801, having received

from the Managers of the Institution full powers to negotiate upon

the subject. On this occasion, however, I thought it advisable

to introduce the Count to Mr. James Thomson, as being the more

eligible person to treat in behalf of Davy, not only on account of

his greater intimacy with him, but because, not being a proprietor,

he was unconnected with the interests of the Institution."

[34] Amongst other celebrated chemists who had become

acquainted with Davy at Bristol, and subsequently spoken of

his extraordinary genius, was Dr. Hope. He informs me that

Count Rumford had applied to him to find some chemist who would

undertake the office of lecturer at the Institution; but that he

failed in discovering such a person as he could, with propriety,

introduce; some time afterwards, however, he became acquainted

with Davy, and having soon perceived his talents, recommended

him without any hesitation to the patronage of the Count. This

circumstance, combined with several others, no doubt might have

had its influence in deciding the fate of Davy.

Mr. Thomson, who saw the prospect of honour and emolument thus

opened for his friend, after a satisfactory interview with Count

Rumford, immediately wrote to Davy, with an earnest recommendation

that he should, without loss of time, come to town, and conclude an

arrangement thus auspiciously commenced.

Davy, with his characteristic ardour, answered the letter in person.

He was introduced to the Managers, and the preliminary arrangements were

soon completed; the nature of which is disclosed by himself in the

following letter to Mr. Gilbert.

Hotwells, March 8, 1801.

I cannot think of quitting the Pneumatic Institution, without

giving you intimation of it in a letter; indeed, I believe I should

have done this some time ago, had not the hurry of business, and

the fever of emotion produced by the prospect of novel changes in

futurity, destroyed to a certain extent my powers of consistent

action.

You, my dear Sir, have behaved to me with great kindness, and

the little ability I possess you have very much contributed to

develope; I should therefore accuse myself of ingratitude, were I

to neglect to ask your approbation of the measures I have adopted

with regard to the change of my situation, and the enlargement of

my views in life.

In consequence of an invitation from Count Rumford, given to me

with some proposals relative to the Royal Institution, I visited

London in the middle of February, where, after several conferences

with that gentleman, I was invited by the Managers of the Royal

Institution to become the Director of their laboratory, and their

Assistant Professor of chemistry; at the same time I was assured

that, within the space of two or three seasons, I should be made

sole Professor of Chemistry, still continuing Director of the

laboratory.

The immediate emolument offered was sufficient for my wants; and

the sole and uncontrolled use of the apparatus of the Institution,

for private experiments, was to be granted me.

The behaviour of Count Rumford, Sir Joseph Banks, Mr. Cavendish,

and the other principal managers, was liberal and polite; and they

promised me any apparatus that I might need for new experiments.

The time required to be devoted to the services of the Institution

was but short, being limited chiefly to the winter and spring.

The emoluments to be attached to the office of sole Professor of

Chemistry are great; and, above all, the situation is permanent,

and held very honourable.

These motives, joined to the approbation of Dr. Beddoes, who

with great liberality has absolved me from my engagements at the

Pneumatic Institution, and the strong wishes of most of my friends

in London and Bristol, determined my conduct.

Thus I am quickly to be transferred to London, whilst my sphere

of action is considerably enlarged, and as much power as I could

reasonably expect, or even wish for at my time of life, secured to

me without the obligation of labouring at a profession.

The Royal Institution will, I hope, be of some utility to society.

It has undoubtedly the capability of becoming a great instrument

of moral and intellectual improvement. Its funds are very great.

It has attached to it the feelings of a great number of people

of fashion and property, and consequently may be the means of

employing, to useful purposes, money which would otherwise be

squandered in luxury, and in the production of unnecessary labour.

Count Rumford professes that it will be kept distinct from party

politics; I sincerely wish that such may be the case, though I

fear it.[35] As for myself, I shall become attached to it full of

hope, with the resolution of employing all my feeble powers towards

promoting its true interests.

So much of my paper has been given to pure egotism, that I have but

little room left to say any thing concerning the state of science,

and the public mind in town; unfortunately, there is little to say.

I have heard of no important discoveries. In politics, nothing

seems capable of exciting permanent interest. The stroke of

poverty, though severely felt, has been a torpedo, benumbing all

energy, and not irritating and awakening it, as might have been

expected.

Here, at the Pneumatic Institution, the nitrous oxide has evidently

been of use. Dr. Beddoes is proceeding in the execution of his

great popular physiological work, which, if it equals the plan he

holds out, ought to supersede every work of the kind.

I have been pursuing Galvanism with labour, and some success. I

have been able to produce galvanic power from simple plates, by

effecting on them different oxidating and deoxidating processes;

but on this point I cannot enlarge in the small remaining space of

paper.

Your remark concerning _negative_ Galvanism, and deoxidation, is

curious, and will most probably hold good.

It will give me much pleasure to see your mathematical Paper[36]

in the Philosophical Transactions, but it will be, unfortunately,

to me the pleasure of _blind_ sympathy, though derived from the

consciousness that you ought to be acting upon, and instructing the

world at large.

It will give me sincere pleasure to hear from you, when you are at

leisure. After the 11th I shall be in town--my direction, Royal

Institution, Albemarle Street. I am, my dear friend, with respect

and affection, Yours,

HUMPHRY DAVY.

[35] In England, politics so constantly mix themselves up with

all our institutions, while science unfortunately finds so few

disciples and patrons in the ranks of aristocracy, that every new

society is viewed with jealousy and party spirit. Johnson says,

in his Life of Addison--"It has been suggested that the Royal

Society was instituted soon after the Restoration, to divert the

attention of the people from public discontent."--P.

[36] He alludes to some calculations connected with light, and

the imponderable fluids.

The first notice of Davy's name, in the Minute Book of the Royal

Institution, occurs in the Report adopted at a Meeting of the

Managers, on Monday the 16th of February 1801.

"Resolved--That Mr. Humphry Davy be engaged in the service of the

Royal Institution, in the capacities of Assistant Lecturer in

Chemistry, Director of the Laboratory, and Assistant Editor of the

Journals of the Institution, and that he be allowed to occupy a

room in the house, and be furnished with coals and candles; and

that he be paid a salary of one hundred guineas per annum."

On the 16th of March 1801, after reporting that "a room had been

prepared and furnished for Davy," the Minute proceeds to state that

"Mr. Davy had arrived at the Institution on Wednesday the 11th of

March, and taken possession of his situation."

It is a curious fact, that the first impression produced on Count

Rumford by Davy's personal appearance, was highly unfavourable to

the young philosopher, and he expressed to Mr. Underwood his great

regret at having been influenced by the ardour with which his suit

had been urged; and he actually would not allow him to lecture in

the Theatre, until he had given a specimen of his abilities in the

smaller lecture-room. His first lecture, however, entirely removed

every prejudice which had been formed; and at its conclusion the

Count emphatically exclaimed--"Let him command any arrangements

which the Institution can afford." He was accordingly, on the very

next day, promoted to the great Theatre.

Davy's uncouth appearance and address subjected him to many other

mortifications on his first arrival in London. There was a smirk

on his countenance, and a pertness in his manner, which, although

arising from the perfect simplicity of his mind, were considered

as indicating an unbecoming confidence. Johnson, the publisher,

as many of my readers will probably remember, was in the custom

of giving weekly dinners to the more distinguished authors and

literary stars of the day. Davy, soon after his appointment,

was invited upon one of these occasions, but the host actually

considered it necessary to explain, by way of apology, to his

company, the motives which had induced him to introduce into their

society a person of such humble pretensions. At this dinner a

circumstance occurred, which must have been very mortifying to

the young philosopher. Fuseli was present, and, as usual, highly

energetic upon various passages of beauty in the poets, when Davy

most unfortunately observed, that there were passages in Milton

which he could never understand. "Very likely, very likely, Sir,"

replied the artist in his broad German accent, "but I am sure that

is not Milton's fault."

On the 7th of April, he was elected a member of a society which

consisted of twenty-five of the most violent republicans of

the day; it was called the "_Tepidarian_ Society," from the

circumstance of nothing but tea being allowed at their meetings,

which were held at Old Slaughter's Coffee House in Saint Martin's

Lane. To the influence of this society, Mr. Underwood states that

Davy was greatly indebted for his early popularity. Fame gathers

her laurels with a slow hand, and the most brilliant talents

require a certain time for producing a due impression upon the

public; the _Tepidarians_ exerted all their personal influence to

obtain an audience before the reputation of the lecturer could have

been sufficiently known to attract one.

Although the acquaintance between Davy and Count Rumford commenced

so inauspiciously, they very soon became friends, and mutually

entertained for each other the highest regard.

Davy's improved manners and naturally simple habits, at this

period, were highly interesting and exemplary: towards his old

friends he conducted himself with the greatest amenity, and

frequently consulted them upon certain points connected with his

new station in society. The following anecdote was communicated

by Mr. Underwood.--"I introduced him," says he, "to my old

friend, the excellent Sir Henry Englefield, who was the first

intimate acquaintance Davy had formed in the higher circles; he

was received by him with all that warmth of manner, and kindness

of feeling, which so eminently distinguished him. Shortly after

this introduction, Sir Harry sent him an invitation to meet

me at dinner. Davy found himself unable to frame an answer to

his satisfaction, and fearing he might betray his ignorance of

etiquette, ran to my house, and greatly alarmed my mother by the

extreme anxiety he displayed, and the manner in which he entreated

her to send me to him the moment I returned. I went and found him

cudgelling his brains to produce this first attempt at fashionable

composition; a dozen answers were on his table, and he was in the

highest degree excited and annoyed."

It would appear that, immediately after his arrival at the Royal

Institution, he entered upon the duties of his station, and

performed them so greatly to the satisfaction of the Managers,

that, at a Meeting held on the first of June, not more than six

weeks afterwards, the following Resolutions were passed.

"Resolved--That Mr. Humphry Davy, Director of the Chemical

Laboratory, and Assistant Lecturer in Chemistry, has, since he has

been employed at the Institution, given satisfactory proofs of his

talents as a Lecturer.

"Resolved--That he be appointed, and in future denominated,

Lecturer in Chemistry at the Royal Institution, instead of

continuing to occupy the place of _Assistant_ Lecturer, which he

has hitherto filled."

From an examination of the Minute Book, it appears that Dr.

Garnett, whose health had long been on the decline, resigned his

professorship on the 15th of June,[37] and that on the 6th of July

in the same year, Dr. Young was engaged as Professor of Natural

Philosophy, Editor of the Journals, and general Superintendent of

the House, at the salary of 300_l._ per annum.

[37] He delivered his farewell Lecture on the 9th of the same

month.

With Dr. Garnett he had lived on terms of great intimacy; with his

successor he associated with less ease and freedom.

At a meeting of the Managers, also held in July, several

Resolutions were passed to the following effect.

"Resolved--That a Course of Lectures on the Chemical Principles of

the Art of Tanning be given by Mr. Davy. To commence the second of

November next; and that respectable persons of the trade, who shall

be recommended by Proprietors of the Institution, be admitted to

these lectures gratis.

"Resolved further--That Mr. Davy have permission to absent himself

during the months of July, August, and September, for the purpose

of making himself more particularly acquainted with the practical

part of the business of tanning, in order to prepare himself for

giving the above-mentioned course of lectures."

Davy, it would appear, availed himself of the permission granted

to him by the above resolution of the Managers, and during the

interval visited his native country.

He had arranged with his friend Underwood to make a tour through

Cornwall; but as it was his wish to remain at Bristol for a few

days, on his way to the West, it was agreed between them that they

should meet at Penzance.

Davy, however, became impatient, and wrote the following letter to

his friend, a composition of much wildness, and obnoxious to the

suspicion of Spinosism.

MY DEAR UNDERWOOD,

That part of Almighty God which resides in the rocks and woods,

in the blue and tranquil sea, in the clouds and sunbeams of the

sky, is calling upon thee with a loud voice: religiously obey its

commands, and come and worship with me on the ancient altars of

Cornwall.

I shall leave Bristol on Thursday next, possibly before, so that

by this day week I shall probably be at Penzance. Ten days or a

fortnight after, I shall expect to see you, and to rejoice with you.

We will admire together the wonders of God,--rocks and the sea,

dead hills and living hills covered with verdure. Amen.

Write to me immediately, and say when you will come. Direct H.

Davy, Penzance. Farewell, Being of energy!

Your's with unfeigned affection,

H. DAVY.

Mr. Underwood transmitted to me the above letter with the following

extract from his journal.

"On the 25th I went to Bristol, and on the 30th arrived at Mrs.

Davy's at Penzance. On the 1st of August we set off on a pedestrian

excursion, and proceeded along the edge of the cliffs, round the

Land's End, Cape Cornwall, Saint Just, and Saint Ives, to Redruth,

and thence back to Penzance.

"Two days afterwards we again started, and trudged along the

shore to the Lizard. Kynance Cove had from the commencement of

our intimacy been a daily theme of his conversation. No epithets

were sufficiently forcible to express his admiration at the beauty

of the spot: the enthusiastic delight with which he dwelt upon

the description of the Serpentine rocks, polished by the waves,

and reflecting the brightest tints from their surfaces, seemed

inexhaustible, and when we had arrived at the spot he appeared

absolutely entranced.

"During these excursions his conversation was most romantic and

poetical. His views of Nature, and her sublime operations, were

expressed without reserve, as they rapidly presented themselves

to his imagination: they were the ravings of genius; but even his

nonsense was that of a superior being."

At the village of Mullion, a little incident occurred, which

evinced the existence of that gastronomic propensity which, in

after years, displayed itself in a wider range of operations. The

tourists had, on their road, purchased a fine large bass of a

fisherman, with the intention of desiring the landlady to dress it.

On arriving at the inn, Mr. Underwood retired into a room for the

purpose of making some notes in the journal he regularly kept. Davy

had disappeared. In the course of a few minutes a most tremendous

uproar was heard in the kitchen, and the indignant vociferations

of the hostess, which, even with all the advantages of Cornish

recitative, was not of the most melodious description, became

fearfully audible. Davy, it seems, had volunteered his assistance

in making the sauce and stuffing for the aforesaid bass; and had

he not speedily retreated, his services would have been rewarded,

not according to the scientific practice of appending a string of

letters to his name, but in conformity with the equally ancient

custom of attaching a certain dishonourable addition to the skirts

of his jacket.

I have observed that his letter to Mr. Underwood betrayed a

tincture of _Spinosism_. It may be here remarked, that during the

year 1801 he composed a poem, which he arbitrarily distinguished

by that appellation, singularly opposed to the tenor of the

sentiments. Through the kindness of Mr. Greenough I possess a copy

of it in its original state, for it was subsequently altered, and

published in a collection, edited by Miss Johanna Baillie; and

still more recently, it underwent farther corrections, and was

printed for private circulation in the form in which I shall here

introduce it.

Lo! o'er the Earth the kindling spirits pour

The flames of life, that bounteous Nature gives;

The limpid dew becomes the rosy flower;

The insensate dust awakes, and moves, and lives.

All speaks of change: the renovated forms

Of long forgotten things arise again.

The light of suns, the breath of angry storms,

The everlasting motions of the main;

These are but engines of the Eternal Will,

The One Intelligence; whose potent sway

Has ever acted, and is acting still,

Whilst stars, and worlds, and systems, all obey:

Without whose power, the whole of mortal things

Were dull, inert, an unharmonious band;

Silent as are the harp's untuned strings

Without the touches of the poet's hand.

A sacred spark, created by His breath,

The immortal mind of man his image bears;

A spirit living midst the forms of death,

Oppress'd but not subdued by mortal cares--

A germ, preparing in the winter's frost,

To rise and bud and blossom in the spring;

An unfledged eagle by the tempest tost,

Unconscious of his future strength of wing:--

The child of trial, to mortality,

And all its changeful influences given:

On the green earth decreed to move and die;

And yet by such a fate prepared for Heaven.--

Soon as it breathes, to feel the mother's form

Of orbed beauty, through its organs thrill;

To press the limbs of life with rapture warm,

And drink of transport from a living rill:

To view the skies with morning radiance bright,

Majestic mingling with the ocean blue,

Or bounded by green hills, or mountains white;

Or peopled plains of rich and varied hue:

The nobler charms astonish'd to behold

Of living loveliness, to see it move,

Cast in expression's rich and varied mould,

Awakening sympathy, compelling love:--

The heavenly balm of mutual hope to taste,

Soother of life; affection's bliss to share,

Sweet as the stream amidst the desert waste,

As the first blush of arctic daylight fair:--

To mingle with its kindred, to descry

The path of power--in public life to shine;

To gain the voice of popularity;

The idol of to-day, the man divine:--

To govern others by an influence strong

As that high law, which moves the murm'ring main;

Raising and carrying all its waves along,

Beneath the full-orb'd moon's meridian reign:--

To scan how transient is the breath of praise;

A winter's zephyr trembling on the snow,

Chill'd as it moves; or as the northern rays,

First fading in the centre, whence they flow:--

To live in forests mingled with the whole

Of natural forms, whose generations rise

In lovely change, in happy order roll

On land, in ocean, in the glittering skies:--

Their harmony to trace--The Eternal Cause

To know in love, in reverence to adore--

To bend beneath the inevitable law,

Sinking in death; its human strength no more:--

Then, as awakening from a dream of pain,

With joy its mortal feelings to resign;

Yet all its living essence to retain,

The undying energy of strength divine:

To quit the burdens of its earthly days,

To give to Nature all her borrow'd powers;

Ethereal fire to feed the solar rays,

Ethereal dew to glad the earth in showers.

The following letter was written from London, after his return from

his Cornish excursion.

TO DAVIES GIDDY, ESQ.

Royal Institution, Nov. 14, 1801.

MY DEAR SIR,

After leaving Cornwall in August, I spent about three weeks in

Bristol, and at Stowey, so that I did not arrive in London until

the 20th of September.

On my arrival I found that Count Rumford had altered his plans of

absence, and had left London on that very day for the Continent,

purposing to return in about two months. He is now at Paris, and in

about a fortnight we expect him here.

I shall soon have an opportunity of submitting Captain Trevitheck's

boiler to his observation, and in my next letter I shall give you

his opinion of it.

You of course have read an account of Dr. Herschel's experiments on

the heat-making rays; from some late observations it appears, that

there are other invisible rays beyond the violet ones, possessed of

the _chemical_ agency of Light. Sennebier ascertained some time ago

that the violet rays blackened muriate of silver in three seconds;

whereas the red rays required, for this effect, twenty minutes.

Ritter and Dr. Wollaston have found that beyond the violet rays

there is exerted a strong deoxidating action. Muriate of silver

placed in the spectrum is not altered beyond the red rays; but it

is instantly blackened when placed on the outside of the violet

rays. I purpose to try whether the invisible deoxidating rays will

produce light, when absorbed by solar phosphorus.

The most curious galvanic facts lately noticed, are the combustion

of gold, silver, and platina. Professor Tromsdorf, by connecting

the ends of a moderately strong battery with gold and silver leaf,

produced the combustion of them with vivid light. In repeating the

experiment on a thin slip of platina, I have produced the same

effect.

I yesterday ascertained rather an important fact, namely, that

a galvanic battery may be constructed _without any metallic

substance_! By means of ten pieces of well-burnt charcoal, nitrous

acid, and water, arranged alternately in wine-glasses, I produced

all the effects usually obtained from zinc, silver, and water.

The Bakerian Lecture by Dr. Young, our Lecturer on Natural

Philosophy, is now reading before the Royal Society. He attempts to

revive the doctrine of Huygens and Euler, that light depends upon

undulations of an ethereal medium. His proofs (i.e. his presumptive

proofs) are drawn from some strong and curious analogies he has

discovered between Light and Sound.

I shall strongly hope, now the Peace has arrived, to see you soon

in London, as you proposed a tour through the Continent; indeed,

you should fix your permanent residence in London, where alone you

can do what you ought--instruct and delight numbers of improved men.

I am, my friend, yours

With unfeigned esteem and respect,

HUMPHRY DAVY.

Although during 1801 Davy had given some desultory Lectures,

his splendid career cannot be said to have commenced until the

following year, when on the 21st of January he delivered his

Introductory Lecture to a crowded and enlightened audience in the

Theatre of the Royal Institution; which was afterwards printed at

the request of a respectable proportion of the Society.

It contains a masterly view of the benefits to be derived from the

various branches of science. He represents the Chemist as the Ruler

of all the elements that surround us, and which he employs either

for the satisfaction of his wants, or the gratification of his

wishes. Not contented with what is to be found on the surface of

the earth, he describes him as penetrating into her bosom, and even

of searching the depths of the ocean, for the purpose of allaying

the restlessness of his desires, or of extending and increasing the

boundaries of his power.

In examining the science of Chemistry, with regard to its great

agency in the improvement of society, he offers the following

almost prophetic remarks. "Unless any great physical changes should

take place upon the globe, the permanency of the Arts and Sciences

is rendered certain, in consequence of the diffusion of knowledge,

by means of the invention of Printing; and by which those words

which are the immutable instruments of thought, are become the

constant and widely diffused nourishment of the mind, and the

preservers of its health and energy.

"Individuals influenced by interested motives or false views, may

check for a time the progress of knowledge;--moral causes may

produce a momentary slumber of the public spirit;--the adoption

of wild and dangerous theories, by ambitious or deluded men, may

throw a temporary opprobrium on literature; but the influence of

true philosophy will never be despised; the germs of improvement

are sown in minds, even where they are not perceived; and sooner or

later, the spring-time of their growth must arrive.

"In reasoning concerning the future hopes of the human species,

we may look forward with confidence to a state of society, in

which the different orders and classes of men will contribute more

effectually to the support of each other than they have hitherto

done. This state, indeed, seems to be approaching fast; for, in

consequence of the multiplication of the means of instruction,

the man of science and the manufacturer are daily becoming more

assimilated to each other. The artist, who formerly affected

to despise scientific principles, because he was incapable of

perceiving the advantages of them, is now so far enlightened as to

favour the adoption of new processes in his art, whenever they are

evidently connected with a diminution of labour; and the increase

of projectors, even to too great an extent, demonstrates the

enthusiasm of the public mind in its search after improvement.

"The arts and sciences, also, are in a high degree cultivated and

patronized by the rich and privileged orders. The guardians of

civilization and of refinement, the most powerful and respected

part of society, are daily growing more attentive to the realities

of life,--and giving up many of their unnecessary enjoyments, in

consequence of the desire to be useful, are becoming the friends

and protectors of the labouring part of the community.

"The unequal division of property and of labour, the differences

of rank and condition amongst mankind, are the sources of power

in civilized life--its moving causes, and even its very soul.

In considering and hoping that the human species is capable of

becoming more enlightened and more happy, we can only expect

that the different parts of the great whole of society should

be intimately united together, by means of knowledge and the

useful arts; that they should act as the children of one great

parent, with one determinate end, so that no power may be rendered

useless--no exertions thrown away.

"In this view, we do not look to distant ages, or amuse ourselves

with brilliant though delusive dreams, concerning the infinite

improveability of man, the annihilation of labour, disease, and

even death, but we reason by analogy from simple facts, we consider

only a state of human progression arising out of its present

condition,--we look for a time that we may reasonably expect--FOR A

BRIGHT DAY, OF WHICH WE ALREADY BEHOLD THE DAWN."

The extraordinary sensation produced amongst the members of the

Institution by this first course of lectures, has been vividly

described by various persons who had the good fortune to be his

auditors; and foreigners have recorded in their travels the

enthusiasm with which the great English chemist had inspired his

countrymen.

The members of the Tepidarian Society, sanguine in the success of

their child,--for so they considered Davy,--purposely appointed

their anniversary festival on the day of his anticipated triumph.

They were not disappointed in their hopes; and their dinner was

marked by every demonstration of hilarity. In the evening, Davy

accompanied by a few friends, attended, for the first time in his

life, a masquerade which was given at Ranelagh.

On the following day, he dined with Sir Harry Englefield. I have a

copy of the invitation, addressed to Mr. Underwood, now before me.

DEAR UNDERWOOD,

Davy, covered with glory, dines with me to-day at five. If you

could meet him, it would give me great pleasure.

Tilney Street, Friday.

Yours truly,

H. C. ENGLEFIELD.

At this dinner, Sir Harry wrote a request to Davy to print his

Lecture, which was signed by every one present, except Mr.

Underwood, who declined, from the apprehension that the signature

of so intimate a friend might give to that which was a spontaneous

homage to talent, the appearance of a previously concerted scheme.

I shall here weave into my narrative some extracts from several

letters, with which Mr. Purkis, one of the earliest friends of

Davy, has lately favoured me.

"On his first appointment at the Royal Institution, I was specially

introduced to him by a common friend, Thomas Poole, Esq. of Nether

Stowey in Somersetshire; and I continued in habits of friendship

with him during a great portion of his life, though somewhat less

intimately during the last few years. I loved him living--I lament

his early death: I shall ever honour his memory.

"The sensation created by his first course of Lectures at the

Institution, and the enthusiastic admiration which they obtained,

is at this period scarcely to be imagined. Men of the first rank

and talent,--the literary and the scientific, the practical and

the theoretical, blue-stockings, and women of fashion, the old

and the young, all crowded--eagerly crowded the lecture-room.

His youth, his simplicity, his natural eloquence, his chemical

knowledge, his happy illustrations and well-conducted experiments,

excited universal attention and unbounded applause. Compliments,

invitations, and presents, were showered upon him in abundance from

all quarters; his society was courted by all, and all appeared

proud of his acquaintance.

"One instance of attention is particularly recalled to my memory.

A talented lady, since well known in the literary world, addressed

him anonymously in a poem of considerable length, replete with

delicate panegyric and genuine feeling. It displayed much

originality, learning, and taste: the language was elegant, the

versification harmonious, the sentiments just, and the imagery

highly poetical. It was accompanied with a handsome ornamental

appendage for the watch, which he was requested to wear when he

delivered his next lecture, as a token of having received the poem,

and pardoned the freedom of the writer. It was long before the

fair authoress was known to him, but they afterwards became well

acquainted with each other."

I should not redeem the pledge given to my readers, nor

fulfill the duties of an impartial biographer, were I to omit

acknowledging that the manners and habits of Davy very shortly

underwent a considerable change. Let those who have vainly

sought to disparage his excellence, enjoy the triumph of knowing

that he was not perfect; but it may be asked in candour, where

is the man of twenty-two years of age, unless the temperature

of his blood were below zero, and his temperament as dull and

passionless as the fabled god of the Brahmins, who could remain

uninfluenced by such an elevation? Look at Davy in the laboratory

at Bristol, pursuing with eager industry various abstract points

of research; mixing only with a few philosophers, sanguine like

himself in the investigation of chemical phenomena, but whose

sphere of observation must have been confined to themselves, and

whose worldly knowledge could scarcely have extended beyond the

precincts of the Institution in which they were engaged. Shift

the scene--behold him in the Theatre of the Royal Institution,

surrounded by an aristocracy of intellect as well as of rank; by

the flowers of genius, the _élite_ of fashion, and the beauty

of England, whose very respirations were suspended in eager

expectation to catch his novel and satisfactory elucidations of

the mysteries of Nature. Could the author of the Rambler have

revisited us, he would certainly have rescinded the passage in

which he says--"All appearance of science is hateful to women; and

he who desires to be well received by them, must qualify himself

by a total rejection of all that is rational and important; must

consider learning as perpetually interdicted, and devote all his

attention to trifle, and all his eloquence to compliment."

It is admitted that his vanity was excited, and his ambition

raised, by such extraordinary demonstrations of devotion; that the

bloom of his simplicity was dulled by the breath of adulation; and

that, losing much of the native frankness which constituted the

great charm of his character, he unfortunately assumed the garb

and airs of a man of fashion; let us not wonder if, under such

circumstances, the inappropriate robe should not always have fallen

in graceful draperies.

At length, so popular did he become, under the auspices of the

Duchess of Gordon and other leaders of high fashion, that even

their _soirées_ were considered incomplete without his presence;

and yet these fascinations, strong as they must have been, never

tempted him from his allegiance to Science: never did the charms

of the saloon allure him from the pursuits of the laboratory, or

distract him from the duties of the lecture-room. The crowds that

repaired to the Institution in the morning were, day after day,

gratified by newly devised and highly illustrative experiments,

conducted with the utmost address, and explained in language at

once perspicuous and eloquent.

He brought down Science from those heights which were before

accessible only to a few, and placed her within the reach of all;

he divested the goddess of all severity of aspect, and represented

her as attired by the Graces.

It is perhaps not possible to convey a better idea of the

fascination of his style, than by the relation of the following

anecdote. A person having observed the constancy with which Mr.

Coleridge attended these lectures, was induced to ask the poet what

attractions he could find in a study so unconnected with his known

pursuits. "I attend Davy's lectures," he replied, "to increase my

stock of metaphors."

But, as Johnson says, in the most general applause some discordant

voices will always be heard; and so was it upon the present

occasion. It was urged by several modern _Zoili_, that the style

was far too florid and imaginative for communicating the plain

lessons of truth; that he described objects of Natural History

by inappropriate imagery, and that violent conceits frequently

usurped the place of philosophical definitions. This was Boeotian

criticism; the Attic spirits selected other points of attack:

they rallied him on the ground of affectation, and whimsically

represented him as swayed by a mawkish sensibility, which

constantly betrayed him into absurdity. There might be some show

of justice in this accusation: The world was not large enough to

satisfy the vulgar ambition of the conqueror, but the minutest

production of nature afforded ample range for the scrutinizing

intelligence of the philosopher; and he would consider a particle

of crystal with so delicate a regard for its minute beauties,

and expatiate with so tender a tone of interest on its fair

proportions, as almost to convey an idea that he bewailed the

condition of necessity which for ever allotted it so slender a

place in the vast scheme of creation.

After the observations which have been offered with regard to

the injurious tendency of metaphors in all matters relating to

science, I may probably be charged with inconsistency in defending

Davy from the attacks thus levelled against his style. We need

not the critic to remind us that the statue of a Lysippus may

be spoiled by gilding; but I would observe that the style which

cannot be tolerated in a philosophical essay, may under peculiar

circumstances be not only admissible, but even expedient, in a

popular lecture. "_Neque ideo minus efficaces sunt orationes nostræ

quia ad aures judicantium cum voluptate perveniunt. Quid enim si

infirmiora horum temporum templa credas, quia non rudi cæmento,

et informibus tegulis exstruuntur; sed marmore nitent et auro

radiantur?_"

Let us consider, for a moment, the class of persons to whom Davy

addressed himself. Were they students prepared to toil with

systematic precision, in order to obtain knowledge as a matter

of necessity?--No--they were composed of the gay and the idle,

who could only be tempted to admit instruction by the prospect of

receiving pleasure,--they were children, who could only be induced

to swallow the salutary draught by the honey around the rim of the

cup.

It has been well observed, that necessity alone can urge the

traveller over barren heaths and snow-topped mountains, while he

treads with rapture along the fertile vales of those happier climes

where every breeze is perfume, and every scene a picture.

If Science can be promoted by increasing the number of its

votaries, and by enlisting into its service those whom wealth

and power may render valuable as examples or patrons, there does

not exist a class of philosophers to which we are more largely

indebted than to popular lecturers, or to those whose eloquence has

clothed with interest, subjects otherwise severe and uninviting.

How many disciples did Mineralogy acquire through the lectures of

Dr. Clarke at Cambridge, who may truly be said to have covered a

desert with verdure, and to have raised from barren rocks flowers

of every hue and fragrance! In the sister university, what an

accession of strength and spirit have the animated discourses of

Dr. Buckland brought to the ranks of Geologists! To judge fairly

of the influence of a popular style, we should acquaint ourselves

with the effects of an opposite method; and if an appeal be made

to experience, I may very safely abide the issue. Dr. Young, whose

profound knowledge of the subjects he taught, no one will venture

to question, lectured in the same theatre, and to an audience

similarly constituted to that which was attracted by Davy, but he

found the number of his attendants diminish daily, and for no other

reason than that he adopted too severe and didactic a style.[38]

[38] From the following minute it would appear, that Dr. Young's

connection with the Royal Institution was but of short duration.

It will be remembered that his appointment took place on July 6,

1801.

"Resolved--That Dr. Young be paid the balance of two years'

complete salary, and that his engagement with the Institution

terminate from this time--July 4, 1803."

In speaking of Davy's lectures as mere specimens of happy oratory,

we do injustice to the philosopher. Had he merely added the

Corinthian foliage to a temple built by other hands, we might have

commended his taste, and admired his talent of adaptation, and

there our eulogium must have ended; but the edifice itself was

his own; he dug the materials from the quarry, formed them into

a regular pile, and then with his masterly touch added to its

strength beauty, and to its utility grace.

In addition to these morning lectures, we find that he was also

engaged in delivering a course in the evening; of which the

following notice is extracted from one of the scientific journals

of the time. "On the 25th, Mr. Davy commenced a course of lectures

on Galvanic phenomena. Sir Joseph Banks, Count Rumford, and other

distinguished philosophers, were present. The audience were highly

gratified, and testified their satisfaction by general and repeated

applause.

"Mr. Davy, who appears to be very young, acquitted himself

admirably. From the sparkling intelligence of his eye, his animated

manner, and the _tout ensemble_, we have no doubt of his attaining

a very distinguished eminence."

From a Minute entered on the Records of the Institution, it appears

that, at a meeting of Managers held on the 31st of May 1802, it was

moved by Sir Joseph Banks, and seconded by Mr. Sullivan,--

"That Mr. Humphry Davy be for the future styled _Professor of

Chemistry_ to the Royal Institution."

A sufficient proof of the universal feeling of admiration which his

lectures had excited.

The success of his exertions is communicated by him to his early

friend, in the following letter.

TO DAVIES GIDDY, ESQ.

DEAR FRIEND,

Since the commencement of the Session at the Institution, I have

had but few moments of leisure. The composition of a first course

of lectures, and the preparation for experiments, have fully

occupied my time; and the anxieties and hopes connected with a

new occupation have prevented me from paying sufficient attention

even to the common duties and affections of life. Under such

circumstances, I trust you will pardon me for having suffered

your letters to remain so long unanswered. In human affairs,

anticipation often constitutes happiness: your correspondence is to

me a real source of pleasure, and, believe me, I would suffer no

opportunity to escape of making it more frequent and regular.

My labours in the Theatre of the Royal Institution have been

more successful than I could have hoped from the nature of them.

In lectures, the effect produced upon the mind is generally

transitory; for the most part, they amuse rather than instruct, and

stimulate to enquiry rather than give information. My audience has

often amounted to four and five hundred, and upwards; and amongst

them some promise to become permanently attached to Chemistry.

This science is much the fashion of the day.

Amongst the latest scientific novelties, the two new planets occupy

the attention of Astronomers, while Natural Philosophers and

Chemists are still employed upon Galvanism.

In a paper lately read before the Royal Society, Dr. Herschel

examines the magnitudes of the bodies discovered by Mr. Piazzi

and Dr. Olbers. He supposes the apparent diameter of Ceres to

be about 22´´, and that of Pallas, 17´´ or 13´´, so that their

real diameters are 163, and 95 or 71 English miles--How small!

The Doctor thinks that they differ from planets in their general

character, as to their diminutive size, the great inclination of

their orbits, the coma surrounding them, and as to the proximity of

their orbits.--From comets, in their want of their eccentricity,

and any considerable nebulosity. He proposes to call them

_Asteroids_.

I mentioned to you in a former letter the great powers of

Galvanism in effecting the combustion of metals. I have lately had

constructed for the laboratory of the Institution, a battery of

immense size: it consists of four hundred plates of five inches in

diameter, and forty, of a foot in diameter. By means of it, I have

been enabled to inflame cotton, sulphur, resin, oil, and ether; it

fuses platina wire, and makes red hot and burns several inches of

iron wire of 1-300th of an inch in diameter; it easily causes fluid

substances, such as oil and water, to boil, decompounds them, and

converts them into gases. I am now examining the agencies of it

upon certain substances that have not as yet been decomposed, and

in my next letter I hope to be able to give you an account of my

experiments.

I shall hope soon to hear that the roads of England are the

haunts of Captain Trevitheck's dragons. You have given them a

characteristic name.

I wish any thing would happen to tempt you to visit London. You

would find a number of persons very glad to see you, with whose

attentions you could not be displeased. With unfeigned respect,

Yours sincerely,

H. DAVY.

It is perhaps not possible to imagine a greater contrast, than

between the elegant manner in which Davy conducted his experiments

in the theatre, and the apparently careless and slovenly style of

his manipulations in the laboratory: but in the one case he was

communicating knowledge; in the other, obtaining it. Mr. Purkis

relates an anecdote very characteristic of this want of refinement

in his working habits. "On one occasion, while reading over to me

an introductory lecture, and wishing to expunge a needless epithet,

instead of taking up the pen, he dipped his forefinger into the

ink-bottle, and thus blotted out the unmeaning expletive."

It was his habit in the laboratory, to carry on several unconnected

experiments at the same time, and he would pass from one to the

other without any obvious design or order: upon these occasions he

was perfectly reckless of his apparatus; breaking and destroying

a part, in order to meet some want of the moment. So rapid were

all his movements, that, while a spectator imagined he was merely

making preparations for an experiment, he was actually obtaining

the results, which were just as accurate as if a much longer time

had been expended. With Davy, rapidity was power.

The rapid performance of intellectual operations was a talent

which displayed itself at every period of his life. We have heard

with what extraordinary rapidity he read at the age of five years;

and we now learn that his chemical enquiries were conducted with

similar facility and quickness.

His early friend Mr. Poole bears his testimony to the existence

of the same quality in the following passage, extracted from a

letter I had lately the favour of receiving from him. "From my

earliest knowledge of my admirable friend, I consider his most

striking characteristic to have been the quickness and truth of

his apprehension. It was a power of reasoning so rapid, when

applied to any subject, that he could hardly be himself conscious

of the process; and it must, I think, have been felt by him, as

it appeared to me, pure intuition. I used to say to him, 'You

understand me before I half understand myself?'

"I recollect on our first acquaintance, he knew but little of the

practice of agriculture. I was at that time a considerable farmer,

and very fond of the occupation. During his visits in those days, I

was at first something like his teacher, but my pupil soon became

my master both in theory and practice."

The chemical manipulations of Wollaston and Davy offered a

singular contrast to each other, and might be considered as highly

characteristic of the temperaments and intellectual qualities of

these remarkable men. Every process of the former was regulated

with the most scrupulous regard to microscopic accuracy, and

performed with the utmost neatness of detail. It has been already

stated with what turbulence and apparent confusion the experiments

of the latter were conducted; and yet each was equally excellent in

his own style; and, as artists, they have not unaptly been compared

to Teniers and Michael Angelo. By long discipline, Wollaston had

acquired such power in commanding and fixing his attention upon

minute objects, that he was able to recognise resemblances, and

to distinguish differences, between precipitates produced by

re-agents, which were invisible to ordinary observers, and which

enabled him to submit to analysis the minutest particle of matter

with success. Davy, on the other hand, obtained his results by

an intellectual process, which may be said to have consisted in

the extreme rapidity with which he seized upon, and applied,

appropriate means at appropriate moments.

Many anecdotes might be related in illustration of the curiously

different structure of the minds of these two ornaments of British

Science. The reader will, in the course of these memoirs, be

furnished with sufficient evidence of the existence of those

qualities which I have assigned to Davy; another biographer will no

doubt ably illustrate those of Dr. Wollaston.

I shall only observe, that to this faculty of minute observation,

which Dr. Wollaston applied with so much advantage, the chemical

world is indebted for the introduction of more simple methods of

experimenting,--for the substitution of a few glass tubes, and

plates of glass, for capacious retorts and receivers, and for the

art of making grains give the results which previously required

pounds. A foreign philosopher once called upon Dr. Wollaston with

letters of introduction, and expressed an anxious desire to see his

laboratory. "Certainly," he replied; and immediately produced a

small tray containing some glass tubes, a blow-pipe, two or three

watch-glasses, a slip of platinum, and a few test bottles.

Wollaston appeared to take great delight in showing by what

small means he could produce great results. Shortly after he had

inspected the grand galvanic battery constructed by Mr. Children,

and had witnessed some of those brilliant phenomena of combustion

which its powers produced, he accidentally met a brother chemist

in the street, and seizing his button, (his constant habit when

speaking on any subject of interest,) he led him into a secluded

corner; when taking from his waistcoat pocket a tailor's thimble,

which contained a galvanic arrangement, and pouring into it the

contents of a small phial, he instantly heated a platinum wire to a

white heat.

There was another peculiarity connected with Wollaston's habit

of minute observation: it enabled him to press into his service,

at the moment, such ordinary and familiar materials as would

never have occurred to less observing chemists. Mr. Brande

relates an anecdote admirably calculated to exemplify this

habit. He had called upon Dr. Wollaston to consult him upon the

subject of a calculus;--it will be remembered that neither

phosphate of lime, constituting the '_bone earth_' species, nor

the ammoniaco-magnesian phosphate, commonly called the '_triple

phosphate_,' is _per se_ fusible; but that when mixed, these

constitute the '_fusible calculus_' which readily melts before

the blow-pipe. Dr. Wollaston, on finding the substance under

examination refractory, took up his paper-folder, and scraping

off a fragment of the ivory, placed it on the specimen, when it

instantly fused.[39]

[39] I have lately been informed that the idea of constructing

an instrument like the Camera Lucida, first suggested itself to

Dr. Wollaston, on his noticing certain phenomena occasioned by a

crack in the glass before which he was shaving himself.

Having contrasted the manipulations of Davy, as exhibited in the

theatre, with those performed by him in the laboratory, it may,

in this place, be interesting to offer a few remarks upon the

difference of his style as a lecturer and as a writer. Whatever

diversity of opinion may have been entertained as to the former,

I believe there never was but one sentiment with respect to the

latter. There is an ethereal clearness of style, a simplicity of

language, and, above all, a freedom from technical expression,

which render his philosophical memoirs fit studies and models for

all future chemists. Mr. Brande, in a late lecture delivered before

the members of the Royal Institution, very justly alluded to this

latter quality of his writings, and forcibly contrasted it with

the system of Berzelius, of whom it is painful to speak but in

terms of the most profound respect, and yet it is impossible not to

express a deep regret at this distinguished chemist's introduction

of a system of technical expressions, which from its obscurity is

calculated to multiply rather than to correct error, and from its

complications, to require more labour than the science to which it

administers: to apply the quaint metaphor of Locke, "it is no more

suited to improve the understanding, than the move of a jack is to

fill our bellies."

From the readiness with which some continental chemists have

adopted such terms, and from the spirit in which they have defended

them, one might almost be led to suspect that they believed them,

like the words used by the Magi of Persia, to possess a cabalistic

power. Davy foresaw the injury which science must sustain from

such a practice, and endeavoured, both by precept and example, to

discountenance it.

With regard to the introduction of a figurative and ornamental

style into memoirs purely scientific, no one could entertain a more

decided objection; and in his "Last Days," he warns us against the

practice.

"In detailing the results of experiments, and in giving them to the

world, the chemical philosopher should adopt the simplest style

and manner; he will avoid all ornaments, as something injurious

to his subject, and should bear in mind the saying of the first

king of Great Britain, respecting a sermon which was excellent in

doctrine, but overcharged with poetical allusions and figurative

language,--'that the tropes and metaphors of the speaker were like

the brilliant wild flowers in a field of corn, very pretty, but

which did very much hurt the corn.'"

The Life of Sir Humphry Davy, Bart. LL.D., Volume 1 (of 2) · 第 3 / 9 章