Читать книгу Lamarck, the Founder of Evolution - A. S. Packard - Страница 14

CHAPTER V
LAST DAYS AND DEATH

Оглавление

Table of Contents

Lamarck’s life was saddened and embittered by the loss of four wives, and the pangs of losing three of his children;[40] also by the rigid economy he had to practise and the unending poverty of his whole existence. A very heavy blow to him and to science was the loss, at an advanced age, of his eyesight.

It was, apparently, not a sudden attack of blindness, for we have hints that at times he had to call in Latreille and others to aid him in the study of the insects. The continuous use of the magnifying lens and the microscope, probably, was the cause of enfeebled eyesight, resulting in complete loss of vision. Duval[41] states that he passed the last ten years of his life in darkness; that his loss of sight gradually came on until he became completely blind.

In the reports of the meetings of the Board of Professors there is but one reference to his blindness. Previous to this we find that, at his last appearance at these sessions—i.e., April 19, 1825—since his condition did not permit him to give his course of lectures, he had asked M. Latreille to fill his place; but such was the latter’s health, he proposed that M. Audouin, sub-librarian of the French Institute, should lecture in his stead, on the invertebrate animals. This was agreed to.

The next reference, and the only explicit one, is that in the records for May 23, 1826, as follows: “Vu la cécité dont M. de Lamarck est frappé, M. Bosc[42] continuera d’exercer sur les parties confiert à M. Audouin la surveillance attribuée au Professeur.”

But, according to Duval, long before this he had been unable to use his eyes. In his Système analytique des Connaissances positives de l’Homme, published in 1820, he refers to the sudden loss of his eyesight.

Even in advanced life Lamarck seems not to have suffered from ill-health, despite the fact that he apparently during the last thirty years of his life lived in a very secluded way. Whether he went out into the world, to the theatre, or even went away from Paris and the Museum into the country in his later years, is a matter of doubt. It is said that he was fond of novels, his daughters reading to him those of the best French authors. After looking with some care through the records of the sessions of the Assembly of Professors, we are struck with the evidences of his devotion to routine museum work and to his courses of lectures.

At that time the Museum sent out to the Écoles centrales of the different departments of France named collections made up from the duplicates, and in this sort of drudgery Lamarck took an active part. He also took a prominent share in the business of the Museum, in the exchange and in the purchase of specimens and collections in his department, and even in the management of the menagerie. Thus he reported on the dentition of the young lions (one dying from teething), on the illness and recovery of one of the elephants, on the generations of goats and kids in the park; also on a small-sized bull born of a small cow covered by a Scottish bull, the young animal having, as he states, all the characters of the original.

For one year (1794) he was secretary of the Board of Professors of the Museum.[43] The records of the meetings from 4 vendémiaire, l’an III., until 4 vendémiaire, l’an IV., are each written in his bold, legible handwriting or signed by him. He signed his name Lamarck, this period being that of the first republic. Afterwards, in the records, his name is written De Lamarck. He was succeeded by É. Geoffroy St. Hilaire, who signed himself plain Geoffroy.

In 1802 he acted as treasurer of the Assembly, and again for a period of six years, until and including 1811, when he resigned, the reason given being: “Il s’occupe depuis six ans et que ses travaux et son age lui rendent penibles.”

Lamarck was extremely regular in his attendance at these meetings. From 1793 until 1818 he rarely, if ever, missed a meeting. We have only observed in the records of this long period the absence of his name on two or three occasions from the list of those present. During 1818 and the following year it was his blindness which probably prevented his regular attendance. July 15, 1818, he was present, and presented the fifth volume of his Animaux sans Vertèbres; and August 31, 1819, he was present[44] and laid before the Assembly the sixth volume of the same great work.


Dessiné d’après Nature à Paris en 1824, et bravé par Ambroise Tardieu

PORTRAIT OF LAMARCK, WHEN OLD AND BLIND, IN THE COSTUME OF A MEMBER OF THE INSTITUTE, ENGRAVED IN 1824.

From the observations of the records we infer that Lamarck never had any long, lingering illness or suffered from overwork, though his life had little sunshine or playtime in it. He must have had a strong constitution, his only infirmity being the terrible one (especially to an observer of nature) of total blindness.

Lamarck’s greatest work in systematic zoölogy would never have been completed had it not been for the self-sacrificing spirit and devotion of his eldest daughter.

A part of the sixth and the whole of the last volume of the Animaux sans Vertèbres were presented to the Assembly of Professors September 10, 1822. This volume was dictated to and written out by one of his daughters, Mlle. Cornelie De Lamarck. On her the aged savant leaned during the last ten years of his life—those years of failing strength and of blindness finally becoming total. The frail woman accompanied him in his hours of exercise, and when he was confined to his house she never left him. It is stated by Cuvier, in his eulogy, that at her first walk out of doors after the end came she was nearly overcome by the fresh air, to which she had become so unaccustomed. She, indeed, practically sacrificed her life to her father. It is one of the rarest and most striking instances of filial devotion known in the annals of science or literature, and is a noticeable contrast to the daughters of the blind Milton, whose domestic life was rendered unhappy by their undutifulness, as they were impatient of the restraint and labors his blindness had imposed upon them.

Besides this, the seventh volume is a voluminous scientific work, filled with very dry special details, making the labor of writing out from dictation, of corrections and preparation for the press, most wearisome and exhausting, to say nothing of the corrections of the proof-sheets, a task which probably fell to her—work enough to break down the health of a strong man.

It was a natural and becoming thing for the Assembly of Professors of the Museum, in view of the “malheureuse position de la famille,” to vote to give her employment in the botanical laboratory in arranging and pasting the dried plants, with a salary of 1,000 francs.

Of the last illness of Lamarck, and the nature of the sickness to which he finally succumbed, there is no account. It is probable that, enfeebled by the weakness of extreme old age, he gradually sank away without suffering from any acute disease.

The exact date of his death has been ascertained by Dr. Mondière,[45] with the aid of M. Saint-Joanny, archiviste du Dèpartment de la Seine, who made special search for the record. The “acte” states that December 28, 1829, Lamarck, then a widower, died in the Jardin du Roi, at the age of eighty-five years.

The obsequies, as stated in the Moniteur Universel of Paris for December 23, 1829, were celebrated on the Sunday previous in the Church of Saint-Médard, his parish. From the church the remains were borne to the cemetery of Montparnasse. At the interment, which took place December 30, M. Latreille, in the name of the Academy of Sciences, and M. Geoffroy St. Hilaire, in the name and on behalf of his colleagues, the Professors of the Museum of Natural History, pronounced eulogies at the grave. The eulogy prepared by Cuvier, and published after his death, was read at a session of the Academy of Sciences, by Baron Silvestre, November 26, 1832.

With the exception of these formalities, the great French naturalist, “the Linné of France,” was buried as one forgotten and unknown. We read with astonishment, in the account by Dr. A. Mondière, who made zealous inquiries for the exact site of the grave of Lamarck, that it is and forever will be unknown. It is a sad and discreditable, and to us inexplicable, fact that his remains did not receive decent burial. They were not even deposited in a separate grave, but were thrown into a trench apparently situated apart from the other graves, and from which the bones of those thrown there were removed every five years. They are probably now in the catacombs of Paris, mingled with those of the thousands of unknown or paupers in that great ossuary.[46]

Dr. Mondière’s account is as follows. Having found in the Moniteur the notice of the burial services, as above stated, he goes on to say:

“Armed with this document, I went again to the cemetery of Montparnasse, where I fortunately found a conservator, M. Lacave, who is entirely au courant with the question of transformism. He therefore interested himself in my inquiries, and, thanks to him, I have been able to determine exactly where Lamarck had been buried. I say had been, because, alas! he had been simply placed in a trench off on one side (fosse à part), that is to say, one which should change its occupant at the end of five years. Was it negligence, was it the jealousy of his colleagues, was it the result of the troubles of 1830? In brief, there had been no permission granted to purchase a burial lot. The bones of Lamarck are probably at this moment mixed with those of all the other unknown which lie there. What had at first led us into an error is that we made the inquiries under the name of Lamarck instead of that of de Monnet. In reality, the register of inscription bears the following mention:

“ ‘De Monnet de Lamarck buried this 20 December 1829 (85 years), 3d square, 1st division, 2d line, trench 22.’

“At some period later, a friendly hand, without doubt, had written on the margin of the register the following information:

“ ‘To the left of M. Dassas.’

“M. Lacave kindly went with us to search for the place where Lamarck had been interred, and on the register we saw this:

“ ‘Dassas, 1st division, 4th line south, No. 6 to the west, concession 1165–1829.’ On arriving at the spot designated, we found some new graves, but nothing to indicate that of M. Dassas, our only mark by which we could trace the site after the changes wrought since 1829. After several ineffectual attempts, I finally perceived a flat grave, surrounded by an iron railing, and covered with weeds. Its surface seemed to me very regular, and I probed this lot. There was a gravestone there. The grave-digger who accompanied us cleared away the surface, and I confess that it was with the greatest pleasure and with deep emotion that we read the name Dassas.

POSITION OF THE BURIAL PLACE OF LAMARCK IN THE CEMETERY OF MONTPARNASSE.

“We found the place, but unfortunately, as I have previously said, the remains of Lamarck are no longer there.”

Mondière added to his letter a little plan (p. 59), which he drew on the spot.[47]

But the life-work of Lamarck and his theory of organic evolution, as well as the lessons of his simple and noble character, are more durable and lasting than any monument of stone or brass. His name will never be forgotten either by his own countrymen or by the world of science and philosophy. After the lapse of nearly a hundred years, and in this first year of the twentieth century, his views have taken root and flourished with a surprising strength and vigor, and his name is preëminent among the naturalists of his time.

No monument exists in Montparnasse, but within the last decade, though the reparation has come tardily, the bust of Lamarck may be seen by visitors to the Jardin des Plantes, on the outer wall of the Nouvelle Galerie, containing the Museums of Comparative Anatomy, Palæontology, and Anthropology.

Although the city of Paris has not yet erected a monument to its greatest naturalist, some public recognition of his eminent services to the city and nation was manifested when the Municipal Council of Paris, on February 10, 1875, gave the name Lamarck to a street.[48] This is a long and not unimportant street on the hill of Montmartre in the XVIIIe arrondissement, and in the zone of the old stone or gypsum quarries which existed before Paris extended so far out in that direction, and from which were taken the fossil remains of the early tertiary mammals described by Cuvier.

The city of Toulouse has also honored itself by naming one of its streets after Lamarck; this was due to the proposal of Professor Émile Cartailhac to the Municipal Council, which voted to this effect May 12, 1886.

In the meetings of the Assembly of Professors no one took the trouble to prepare and enter minutes, however brief and formal, relative to his decease. The death of Lamarck is not even referred to in the Procès-verbaux. This is the more marked because there is an entry in the same records for 1829, and about the same date, of an extraordinary séance held November 19, 1829, when “the Assembly” was convoked to take measures regarding the death of Professor Vauquelin relative to the choice of a candidate, Chevreul being elected to fill his chair.

Lamarck’s chair was at his death divided, and the two professorships thus formed were given to Latreille and De Blainville.

At the session of the Assembly of Professors held December 8, 1829, Geoffroy St. Hilaire sent in a letter to the Assembly urging that the department of invertebrate animals be divided into two, and referred to the bad state of preservation of the insects, the force of assistants to care for these being insufficient. He also, in his usual tactful way, referred to the “complaisance extrème de la parte de M. De Lamarck” in 1793, in assenting to the reunion in a single professorship of the mass of animals then called “insectes et vermes.”

The two successors of the chair held by Lamarck were certainly not dilatory in asking for appointments. At a session of the Professors held December 22, 1829, the first meeting after his death, we find the following entry: “M. Latreille écrit pour exprimer son désir d’être présenté comme candidat à la chaire vacante par le décès de M. Lamarck et pour rappeler ses titres à cette place.”

M. de Blainville also wrote in the same manner: “Dans le cas que la chaire serait divisée, il demande la place de Professeur de l’histoire des animaux inarticulés. Dans le cas contraire il se présente également comme candidat, voulant, tout en respectant les droits acquis, ne pas laisser dans l’oubli ceux qui lui appartiennent.”

January 12, 1830, Latreille[49] was unanimously elected by the Assembly a candidate to the chair of entomology, and at a following session (February 16th) De Blainville was unanimously elected a candidate for the chair of Molluscs, Vers et Zoophytes, and on the 16th of March the royal ordinance confirming those elections was received by the Assembly.

There could have been no fitter appointments made for those two positions. Lamarck had long known Latreille “and loved him as a son.” De Blainville honored and respected Lamarck, and fully appreciated his commanding abilities as an observer and thinker.

Lamarck, the Founder of Evolution

Подняться наверх