Davy now began to find that

'Uneasy lies the head that wears a crown.'

He was worried by the numerous small duties which pertained to his

prominent position, and was sadly disappointed at not being able

to prevail upon the Government of the day to take up his somewhat

magnificent views as to the development of the Royal Society, and the

subordination of certain other great public establishments to it. He

used to complain that the Government were only too glad to get anything

they could out of the Society, but were loth to give back anything

in return. I gather too, from what Dr. Davy says, that symptoms of

failing health began, even thus early, to show themselves. He somewhat

relaxed the severity of his labours--made trips to Ireland, Wales, and

Scotland (dining at Edinburgh with Sir Walter Scott), chiefly with a

view to enjoying the fine scenery, and the fishing and shooting; but,

as regards Wales, also with the object of devising means for remedying

the results produced by the noxious copper effluvia from the Smelting

Works at Swansea.

In the autumn of 1821 he paid a visit to Penzance; always fond--as

indeed most Cornishmen seem to be--of embracing an opportunity of

revisiting his native place. On this occasion he was entertained at a

public dinner; and he left his old home, doubtless expecting to see it

again and again: but this was destined to be his last visit.

From 1823 to 1826 may be described as the last period of his scientific

labours; and it was in a great measure devoted to investigations,

undertaken at the request of the Government, into the best mode of

preventing the destruction of the copper-sheathing of vessels by the

action of the sea. This Davy to some extent accomplished by coating

the copper with tin; but, unfortunately, the tin did not prevent (as

the copper did) the fouling of the metal by accretions of seaweeds and

shells; and the practical result was nil.

He was much disappointed at this, having taken great pains in the

matter, and having even made a voyage to the North Sea for the purpose

of conducting his experiments. Of this excursion, which included visits

to Norway, Sweden, and Denmark, he has left copious records--though, as

a general rule, he had now discontinued his diary--and these include

his reflexions not only on the scenery, etc., through which he passed,

but, according to his custom, his impressions of the distinguished men

of science and others with whom he came in contact. Those circumstances

which impressed Davy most deeply he often recorded, as was his practice

throughout his life, in verse. A specimen may be given here in the

following fragment written at Ullswater, which he visited in August,

1825:

'Ye lovely hills that rise in majesty

Amidst the ruddy light of setting suns,

Your tops are bright with radiance, while below

The wave is dark and gloomy, and the vale

Hid in obscurest mist. Such is the life

Of Man: this vale of earth and waters dark

And gloomy--but the mountains range above!

The sky--the heavens are bright!----'

But he could not succeed in shaking off the illness of which he had

had more than one warning; and even his elastic spirits began to flag

under its depressing influence. The spring of 1826 found him worse;

he complained much of rheumatism, and of slight numbness in his limbs;

and the death of his mother in the autumn still further affected his

health. With great pain and effort he delivered what proved to be his

last address to the Royal Society--a body whose mission was so like

his own, 'ad inquisitionem et inventionem naturæ veræ et interioris

rerum omnium'--on St. Andrew's Day, 1826; and shortly after he

suffered a slight attack of paralysis, which, however, did not prevent

his revising his discourses, nor even deter him from projecting new

scientific treatises. During his recovery he liked nothing better than

having novels and romances read to him,--partly I should think to

divert his mind from the small worries which were inevitable to one

occupying the post which he filled, but which at this juncture pressed

upon him with increasing force, and indeed probably conduced to his

determining upon another visit to the Continent in January, 1827,

accompanied on this occasion only by his brother, Dr. John Davy, an

army surgeon.

The winter journey was rough and dreary. Paris was avoided, on account

of the too great excitement which it was feared its society might

induce; and the roads along which the travellers drove, bad at the

best, were now in their very worst condition from the snow. The scenes

through which they passed were uninteresting, the occasional roadside

churches being the only noteworthy objects; and these they rarely

failed to enter, the sick philosopher generally dropping on his knees

for a silent prayer.

So they passed on, notwithstanding the severe cold and the snow,

over the Mont Cenis, into Italy, reaching Ravenna on the 27th

February--Davy, strange to say, rather the better than the worse for

his cold and cheerless expedition. Here he rested for some time,

occupying himself chiefly in shooting, fishing, and reading Byron,

whose acquaintance (with that of the accomplished Countess Guiccioli)

he had previously made at this place. His note-book was kept up, and

was filled with numerous acute observations on subjects connected with

natural history and chemistry, interspersed with expressions of pious

humility and of gratitude to 'the Great Cause of all being.' His health

improved; and in March, 1827, Dr. Davy returned to Corfu, whilst Sir

Humphry shortly afterwards started on a solitary expedition through

the Eastern Alps and down the Rhine. But his health now declined;

he frequently had to apply leeches and blisters, and he lived so

abstemiously as to considerably reduce his strength and spirits. 'Valde

miserabilis!' he often exclaimed in his note-book; and once he wrote,

'Dubito fortissime restaurationem meam.' It was no doubt whilst in this

mood that he wrote to Mr. Davies Gilbert from Salzburg, on 30th June,

1827, announcing his retirement from the office of President of the

Royal Society.[115] Whilst on one of his numerous fishing expeditions,

a pursuit[116] which, as we have seen, he passionately followed all

his life long, he wrote about this time, the following pensive lines,

_more suo_, on contemplating a rapid river:

'E'en as I look upon thy mighty flood,

Absorb'd in thought, it seems that I become

A part of thee, and in thy thundering waves

My thoughts are lost, and pass to future time,

Seeking the infinite, and rolling on

Towards the eternal and unbounded sea

Of the All-Powerful, Omnipresent Mind.'

This was a favourite thought of his. He amplified it in a letter which

he addressed from Rome in the following year to his friend Poole:

'I have this conviction full on my mind,' he wrote, 'that intellectual

beings spring from the same breath of Infinite Intelligence, and

return to it again, but by different courses. Like rivers born amid

the clouds of heaven, and lost in the deep and eternal ocean--some in

youth, rapid and short-lived torrents; some in manhood, powerful and

copious rivers; and some in age, by a slow and winding course, half

lost in their career, and making their exit by many sandy and shallow

mouths.'

The current of his own life now carried him back in one of its eddies

to London, which he reached on 6th October.

The winter was passed in town, but the state of his health prevented

any great exertion, and did not permit his seeing much society; yet

the world can scarcely be said to have been the loser; for in his

retirement he composed (being now nearly fifty years of age), that

delightful book, dear to every angler, 'Salmonia.'[117] Returning

spring revived his desire to revisit what he considered the finest

scenery in the world, namely, the Alpine valleys of Illyria and Styria;

and at the end of March he left England, accompanied by a young medical

gentleman (his godson), Mr. Tobin, the son of a much-valued old friend.

His pursuits were much as usual, and, living somewhat more generously,

he more than once entertained some faint hopes of his ultimate

recovery; 'attaching,' as he himself put it, 'a loose fringe, of hope

to his tattered garments.' His mind was fully active during this

summer, as may be judged from his having now planned his well-known

work, 'Consolations of Travel,' which he used to say 'contained the

essence of his philosophical opinions;' and from his having sketched

out a slight plan for his own memoirs. Stress of weather detained him

a short time at Wurzen, and here he occupied the time of his detention

by writing his little Irish romance, 'The Last of the O'Donoghues.'

He also now sent to press the second edition of his 'Salmonia,' which

he thought 'twice as good, as well as twice as big' as the first.

At Trieste he resumed his experiments on the electric eel, and at

length satisfied himself that under no conditions did the shock affect

the magnet. This formed the subject of a paper--the last of a series

which continued almost uninterruptedly for a period of twenty-eight

years--published by the Royal Society. It was about this time that he

made the noble and touching entry in his diary:

'Si moro, spero che ho fatto il mio dovere; e che mia vita non e stato

vano ed inutile.'[118]

The curtain rises on the last act, at Rome, where he passed the winter.

Here--where he describes himself, in a letter dated 6th February, 1829,

to his friend Poole, as 'a ruin among ruins'--he received, a fortnight

after that date, his last and fatal shock of paralysis. It was quite

unexpected by him, and he was barely able to write one or two hurried

letters to his brother, begging him to come quickly. He now quite made

up his mind that he was about to die; but his mind continued calm and

clear, and he urged Dr. Davy, when he at length arrived, not to give

way to any vain regrets, but to regard the matter philosophically.

Even in this extremity, the consideration of the strange powers of the

torpedo exercised a fascinating influence over him; and he directed

experiments and dissections of the fish from the bed upon which he not

only believed himself to be dying, but upon which he thought, more than

once, that he had actually died. Only with great difficulty was he

persuaded by his wife and surrounding friends that he had not as yet

passed the dark portals of the grave.

It will hardly be believed that from such a state as this he rallied.

Yet such was the case! Lady Davy had brought with her from England an

early copy of the second edition of his 'Salmonia;' and he read it with

avidity. Indeed reading--or rather being read to--was now almost his

only pursuit. Moore's 'Epicurean,' Shakespeare, 'The Arabian Nights,'

and 'Humphrey Clinker,' by turns engaged his attention; and at length

he not only thought recovery possible, but by April was actually able

to take drives about Rome and its neighbourhood, entering fully, with

his companions, into all the enjoyment of the charms of a brilliant

Italian spring.

At length, leaving Rome, 'by slow and easy stages,' they came to

Geneva, which place they reached on the 28th May, by the Mont Cenis

route. Here the little party took up their residence at La Couronne

hotel, which overlooks the lake; and Davy expressed an earnest desire

once more to throw a fly on it. He was very deeply affected on hearing

of the death of his old friend Dr. Thomas Young; but dined heartily

with the others at five o'clock. After dinner he was heard joking with

the waiter as to the cooking of the fish, and desiring that he might be

furnished with a specimen of every variety which the lake contained;

and, after being read to as usual, he went to bed at nine. In rising,

however, from his chair at the dinner table, for this purpose, he

gave his elbow a rather violent blow, the sensations resulting from

which frightened him very much, and probably accelerated his decease.

At half-past two in the morning the servant aroused Dr. Davy with the

information that his illustrious brother was much worse. The doctor

flew to the chamber, but only in time to see Sir Humphry expire, just

as the morning of the 29th of May, 1829, began to dawn.

His will was proved under £30,000, and Lady Davy was appointed sole

executrix. Paris says that he left £100 to the Penzance Grammar School,

the interest to be devoted to a prize for the best scholar, provided

the school kept holiday on the anniversary of his birthday; but I do

not find this in the will. I believe that the interest on the money is

still paid, but that the holiday is omitted.

A public funeral was decreed him by the authorities and literati of

Geneva, including his friends Decandolle and Sismondi, who highly

appreciated him; and his mortal remains were deposited in the cemetery

at Plain-Palais, close to those of Professor Pictet.[119] It was Davy's

wish, as expressed in his will, to be buried wherever he might die:

'Natura curat suas reliquias,' he wrote; and on his monument will be

found the reason of this lofty reliance--namely, because he was

'Summus arcanorum Naturæ indigator.'[120]

Thus died, without issue, and within a few months of his great friends

Wollaston and Young, Sir Humphry Davy, poet and philosopher, before

he had completed his fifty-first year--a man (to use the words of Dr.

Paris) 'whose splendid discoveries illumined the age in which he lived,

adorned the country which gave him birth, and obtained from foreign and

hostile nations the homage of admiration and the meed of gratitude.'

His genius it would be presumptuous in me to endeavour to analyze

or describe. I have attempted a biographical sketch rather than an

essay on Davy's proper place in the ranks of science;[121] but he was

undoubtedly one of the master-spirits of his age; and I gladly select,

from among many other similar accounts, the peroration of the _éloge_

pronounced upon him by Baron Cuvier before the Institute of France:

'Ainsi a fini à cinquante ans, sur une terre étrangère, un génie dont

le nom brillera avec éclat parmi cette foule s'éclatante de noms dont

s'enarguillit la Grande Bretagne. Mais, que dis je, pour un tel homme

aucune terre n'est étrangère; Genève surtout ne pouvait pas l'être,

où, depuis vingt ans, il comptait des amis intimes, des admirateurs

sans cesse occupés de répandre ses decouvertes sur le Continent;

aussi, le deuil n'eût pas été plus grand ni les obsèques plus

honorables pour un de leur concitoyens les plus respectés.'

The talented and indefatigable editors of the 'Bibliotheca

Cornubiensis' have observed that, since the formation of the Royal

Society, fifty-eight persons, either born in Cornwall or long

resident within its borders, have become, through their eminence in

mineralogical and other pursuits, Fellows of that body. A full list of

their names is printed in the index to Messrs. Boase and Courtney's

work; and in it they rightly say that Cornishmen may be pardoned for

believing that no such record of distinction in scientific knowledge

could be drawn up from any English county of corresponding size and

population. I will only add my opinion that, amongst the foremost in

that bright roll of honour, stands forth the name of HUMPHRY DAVY.

[Illustration: (end of chapter vignette.)]

Cornish Worthies: Sketches of Some Eminent Cornish Men and Families, Volume 1 (of 2) · 第 57 / 68 题