Louis Agassiz: His Life and Correspondence

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ctually been engaged for months on the first work which gave him distinction in the scientific world; namely, a description of the Brazilian fishes brought home by Martius and Spix from their celebrated journey in Brazil. This was the secret to which allusion is made in the next letter. To his disappointment an accident brought his undertaking to the knowledge of his fa

S BRO

July 2

thing: do not take it into your head that I am about to don the fool's cap suddenly and surprise you with a Doctor's degree; that would be going a little too fast, nor do I think of it yet. . .I want to remind you not to let the summer pass without getting me fishes according to the list in my last letter, which I hope you have not mislaid. You would give me great pleasure by sending them as soon as possible. Let me tell you why. M. Cuvier has announced the publication of a complete work on all the known fishes, and in the prospectus he calls on such naturalists as occupy themselves with ichthyology to send him the fishes of the country where they live; he mentions those who have already sent him collections, and promises duplicates from the Paris

HIS B

, August

thusiasm. What more can be said? I gave him your letter to read, and since then he has asked me a dozen times at least if I had not forgotten to forward the remittance you asked for, saying that I must not delay it. The truth is, I have deferred writing till the last moment, because I have not succeeded in getting your fishes, and have always been hoping that I might be able to fulfill your commission. I busied myself on your behalf with all the zeal and industry of which I was capable, but quite in vain. The devil seemed to be in it. The season of Bondelles was over two months ago, and there are none to be seen; as to trout, I don't believe one has been eaten in the whole town for six weeks. I am forever at the heels of the fishermen, promising them doub

SISTER

October

ll naturalists he died in 1826. M. Martius, desirous to see the completion of the work which his traveling companion had begun, engaged a professor from Erlangen to publish the shells, and these appeared last year. When I came to Munich there remained only the fishes and insects, and M. Martius, who had learned something about me from the professors to whom I was known, found me worthy to continue the work of Spix, and asked me to carry on the natural history of the fishes. I hesitated for a long time to accept this honorable offer, fearing that the occupation might withdraw me too much from my studies; but, on the other hand, the opportunity for laying the foundation of a reputation by a large undertaking seemed too favorable to be refused. The first volume is already finished, and the printing was begun some weeks ago. You can imagine the pleasure I should have had in sending it to our

d have mentioned me more than once, as one of the most assiduous and best informed students of the university; saying also that I deserved distinction. I do not tell you this from ostentation, but only that you may not think I los

interruption of his work. The next letter giv

S PAR

eptember

ons were the younger Schimper [Wilhelm], of whom I have spoken to you (and who made a botanical journey in the south of France and the Pyrenees two years ago), and Mahir, who drove us, with whom I am very intimate; he is a medical student, and also a very enthusiastic physicist. He gave me private lessons in mathematics all winter, and was a member of our philomathic meetings. Braun had not set out alone either, and his two traveling companions were also friends of ours. One was Trettenbacher, a medical student greatly gi

d I could change its course and send it back laden with my greetings. The next day Mahir drove us as far as the shore of the lake. There we parted from him, and took a boat to the islands, where we were much disappointed not to find Braun and his companions. We thought the bad weather of the day before (for here it had rained all day) might have obliged them to make the circuit of the lake. However, in order to overtake them before reaching Salzburg, we kept our boatmen, and were rowed across to the opposite shore near Grabenstadt, where we arrived at ten o'clock in the ev

e who travels here on foot, with a knapsack on his back, is understood to belong to the laboring class. . .Arrived at the village, we were delighted to find that the three journeymen were our traveling companions. They had come, like ourselves, from Traunstein, where we had missed each other in the crowd, and they were going likewise to sleep at Adelstaetten, to avoid the custom-house. Finally, on Monday, at ten o'clock, we crossed the long bridge over the Saala, between the white coats with yellow trimmings on guard there. On the Bavarian frontier we had hardly remembered that there was a custom-house, and the name of student sufficed to pass us without our showing any passports; here, on the contrary, it was another reason for the strictest examination. "Have you no forbidden books?" was the first question. By good fortune, before crossing the bridge, I had advised Trettenbach to hide his song-book in the lining of his boot. I am assured that had it been taken upon him he would not have been allowed to pass. In ransacking Braun's bag, one of the officials found a shell such as are gathered by the basketful on the shores of the Lake of Neuchatel. His first impulse was to go to the office and inquire whether we should not pay duty on this, saying that it was no doubt for the fabrication of false pearls, and we probably had plenty more. We had all the difficulty in the world to make him understand that not fifty steps from the custom-house the shores of the river were strewn with them. . . After all this we had t

n preserved. Some extracts from the home letters of Agassiz's friend Braun, which are in place here, throw light on th

BRAUN TO H

November

ng settled as yet, but we mean to take the lectures of Dollinger, in single chapters, as, for instance, when he comes to the organs of the senses. At one o'clock we go to dinner, for which we have at last found a comfortable and regular place, at a private house, after having dined everywhere and anywhere, at prices from nine to twenty kreutzers. Here, for thirteen kreutzers* (* About nine cents of our money.) each, in company with a few others, mostly known to us, we are provided with a good and neatly served meal. After dinner we go to Dr. Waltl, with whom we study chemistry, using Gmelin's text-book, and are shown the most important experiments. Next week we are to begin entomology with Dr. Perty, from three to four, three times a week. From one to two o'clock on Saturday we have a lesson in experimental physiology, plainly speaking, in animal dissection, from Dr. Oesterreicher, a young Docent, who has written on the circulation of the blood. As Agassiz dissects a great many animals, especially fishes, at the house, we are making rapid progress in comparative anatomy. At four o'clock we go usually once a week to hear Oken on "Natur-philosophie" (

g constantly employed in making illustrations for the "Poissons Fossiles" and the "Poissons d'Eau Douce," as well as for his monographs and smaller papers. The two larger works, the latter of which remained unfinished, were even now in embryo. Not only was Mr. Dinkel at work upon the plates for the Fresh-Water Fishes, but Mr. J.C. Weber, who was then engaged in making, under Agassiz's direction, the illustrations for

in general reserved and never noisy. He picked out the gifted and highly-learned students, and would not waste his time in ordinary conversation. Often, when he saw a number of students going off on some empty pleasure-trip, he said to me, 'There they go with the other fellows; their motto is, "Ich gehe mit den andern." I will go my own way, Mr. Dinkel,-and not alone: I will be a leader of others.' In all his doings there was an ease and calm which was remarkable. His studio was a perfect German student's room. It was large, with several wide windows; the furniture consisted of a couch and about half a dozen chairs, beside some tables for the use of his artists and himself. Dr. Alex Braun and Dr. Schimper lod

some three thousand species of plants collected by himself, and a small cabinet of minerals. After enumerating them in a letter to his parents he continues: "You can imagine that all these things are in my way now that I cannot attend to them, and that for want of room and care they are piled up and in danger of spoiling. You see by my list that the whole collection is valued at two hundred louis; and this is so low an estimate that even those who sell objects of natural history would not hesitate to take them at that price. You will therefore easily understand how anxious I am to keep them intact. Can y

t last fulfilling his longing for a journey of exploration. This hope is revealed in his next home letter. The letter is a long o

IS F

February

ssess, but of what I am to be. Let me first recall one or two points touch

le of Doctor in two years, and to be prepared (after having completed my studies i

t of absence from my country and separation from all who are dear to me. But you know me too well to think that I would voluntarily impose upon myself such an exile. Let us see whether we cannot resolve these difficulties to our mutual satisfaction, and consider what is the surest road to the end I hav

the summing up of his reasons for preferring a professorship of natural history to the practice of medicine, and his intention of trying for a diploma as Doctor of Philosophy in Germany.] But how obtain a professorship, you will say,-that is the important point? I answer, the first step is to make myself a European name, and for that I am on the right road. In the first place my work on the fish

w happy I should be to join this expedition to a country the climate of which is by no means unhealthy, under the direction of a man so generally esteemed, to whom the Emperor of Russia has promised help and an escort at all times and under all circumstances. The second expedition is to a country quite as salubrious, and which presents no dangers whatever for travelers,-South America. It will be under the direction of M. Ackermann, known as a distinguished agriculturist and as Councilor of State to the Grand Duke of Baden. I should prefer to go with Humboldt; but if I am too late, I feel very sure of being able to join the second expedition. So it depends, you see, only on your con

and youth, which were, after all, only a latent love of research, crystallize into the concentrated purpose of the man who could remain

HIS F

bruary 2

for you the choice of M. de Humboldt, whose expedition seems to us preferable, in every respect, to that of M. Ackermann. The first embraces a wider field, and concerns the history of man rather than that of animals; the latter is confined to an excursion along the sea-board, whe

tells us how the projects so ardently urged upon his parents by Agassiz, and

TO HIS

February

tice, and Agassiz added, eagerly, "Yes,-and if there were any hope that he would take us, a word from you would have more weight than anything." Oken's answer gave us but cold comfort; nevertheless, he promised to write at once to Humboldt in our behalf. With this, we went home in great glee; it was very late and a bright moonlight ni

their bright vision faded. Oken fulfilled his promise and wrote to Humboldt, recommending them most warmly. Humboldt answered th

ew lectures there in anatomy and zoology I could think of nothing but skeletons. In a short time I had learned to dissect, and had made for myself a small collection of skulls of animals from different classes. I passed two years in Zurich, studying whatever I could find in the Museum, and dissecting all the animals I could procure. I even sent to Berlin at this time for a monkey in spirits of wine, that I might compare the nervous system with that of man. I spent all the little means I had in order to see and learn as much as possible. Then I persuaded my father to let me go to Heidelberg, where for a year I followed Tiedemann's courses in human anatomy. I passed almost the whole winter in the anatomical laboratory. The following summer

ew drawings made. I beg that you will judge this work when it reaches you with indulgence, as the first literary essay of a young man. I hope to complete it in the course of the next summer. I would beg you, in advance, to give me a paternal word of advice as to the direction my studies should then take. Ought I to devote myself to the study of medicine? I have no fortune, it is true; but I would gladly sacrifice my life if, by so doing, I could serve the cause of science. Though I have not even a presentiment of any means with which I may one day travel in distant countries, I have, nevertheless, prepared myself during the last three years as if I might be off at any minute. I have learned to skin all sorts of animals, even very large ones. I have made more than a hundred skeletons of quadrupeds, birds, reptiles, and fishes; I have tested all the various liquors for preserving such animals as should not be skinned, and have thought of the means of supplying the want in countries where the like preparations are not to be had, in case of need. Finally, I have trained as traveling companion a young friend,* (* William Schimper, brother of Karl.) and awakened in him the same love of the natural sciences. He is an excellent hunter, and at my instigation

ate 1827) from Cuvier to Martius, found among Agassiz's papers of this time, and containing the very notes on the Spix Fishes to which allusion is here made

ly in deference to Martius, who wished the name of his young colleague to appear on the title-page of the Brazilian Fishes with the dignity of Doctor, and partl

S BRO

May 22

to go to Erlangen only for the colloquium and promotion. They granted our request on condition of our promise (jurisjurandi loco polliciti sumus) to answer the questions propounded without help from any one and without consulting books. Among other things I had to develop a natural system of zoology, to show the relation between human history and natural history, to determine the true basis and limits of the philosophy of nature, etc. As an inaugural dissertation, I presented some general and novel considerations on the formation of the skeleton throughout the animal kingdom, from the inf

hed me. I congratulate you with all my heart on your success. I am going to send to grandpapa the one destined for him

to his parents as his own forerunner. After joining a scientific meeting to be held at Heidelberg, in Sept

S PAR

July 4

blish as soon as possible my natural history of the fresh-water fishes of Germany and Switzerland. I propose to issue it in numbers, each containing twelve colored plates accompanied by six sheets of letter-press. . .In the middle of September there is to be a meeting of all the naturalists and medical men of Germany, to which foreign savants are invited. A similar meeting has been held for the last two or three years in one or another of the brilliant centres of Ger

ly. The next crowded letter contains chiefly domestic details, but closes with a postscript from Mme. Agassiz, filling

HIS M

t 16,

impatience for the moment when we shall see you and talk with you. Your correspondence leaves many blanks, and we are sometimes quite ashamed that we have so few details to give about your book. You will be surprised that it has not yet reached us. Does the gentleman in Geneva intend to read

IS F

st,

whom I sent it in the same way, has acknowledged its arrival. I inclose his letter, hoping it wi

O LOUIS

DIN DU ROI, A

e figures, will make the work an important one in ichthyology, and nothing could heighten its value more than the accuracy of your descriptions. It will be of the greatest use to me in my History of Fishes. I had already referr

Meidinger, and those of Marsigli, are quite insufficient. We have the greater part of the species here, so that it will be easy for me to verify the characters; but only an artist, working on the spot, with specimens fresh fro

ments, accept the assurance of my wa

CUV

g naturalist's first book is in the hands of his parents. Th

HIS F

ugust 3

to express the pleasure it has given me. In two words, for I have only a moment to myself, I repeat my urgent entreaty that you would has