“L. Agassiz.”
Among the objects of special interest which we have seen here for the first time are the colossal fruits of the Sapucaia-tree, a species of Lecythis, belonging to the same family as the Brazilian nuts. These fruits, of which there are a number of species, vary from the size of an apple to that of an ordinary melon; they resemble an urn closed with a lid, and contain about fifty seeds as large as almonds. The woods all over these Tijuca hills are beautiful and wonderfully luxuriant; but I lack names for the various trees. We are not yet familiar enough with the aspect of the forest to distinguish readily its different forms of vegetation; and it is besides exceedingly difficult here to ascertain the common names of plants. The Brazilians do not seem to me observant of nature in its details; at all events, I never get a satisfactory answer to the question I am constantly putting, “What do you call this tree or flower?” And if you ask a botanist, he invariably gives you the scientific, not the popular name, nor does he seem to be aware that any such exists. I have a due respect for nomenclature, but when I inquire the name of some very graceful tree or some exquisite flower, I like to receive a manageable answer, something that may fitly be introduced into the privacy of domestic life, rather than the ponderous official Latin appellation. We are struck with the variety of Melastomas in full flower now, and very conspicuous, from their large purple blossoms, and have remarked also several species of the Bombaceæ, easily distinguished by their peculiar foliage and large cotton fruits. The Candelabra-tree (Cecropia) is abundant here, as throughout the neighborhood of Rio, and is covered at this season with fruit resembling somewhat the fruit of the bread-tree, but more slender and cylindrical in form. Large Euphorbias, of the size of forest-trees, also attract our attention, for it is the first time we have seen them except as shrubs, such as the “Estrella do Norte” (Poinsettia). But there is before Mr. Bennett’s house a very large nut-tree, “Nogueira,” of this family. The palms are numerous; among them the Astrocaryum Cari, whose spiny stems and leaves make it difficult to approach, is very common. Its bunches of bright chestnut-brown fruit hang from between the leaves which form its crown, each bunch about a foot in length, massive and compact, like a large cluster of black Hamburg grapes. The Syagrus palm is also frequent; it has a greenish fruit not unlike the olive in appearance, also hanging in large pendent bunches just below the leaves. The mass of foliage is everywhere knit together by parasitic vines without number, and every dead branch or fallen trunk is overgrown by parasites. Foreign tropical trees are cultivated about the houses everywhere,—bread-fruit trees and Ameixas, a kind of plum of the hawthorn family, bananas, etc. The bamboo of the East Indies also is used to form avenues in Rio de Janeiro and its environs. The alleys of bamboo in the grounds of the palace at San Christovāo are among its most beautiful ornaments.
Fallen Trunk overgrown by Parasites.
Mr. Agassiz has been surprised to find that shrimps of considerable size are common in all the brooks and even in the highest pools of Tijuca. It seems strange to meet with Crustacea of marine forms in mountain streams.
To-day we are kept in the house by a violent rain, but there is enough to do in looking over specimens, working up journals, writing letters, &c., to prevent the time from hanging heavy on our hands. To-morrow we return to town.
May 28th, Rio.—To-day is Mr. Agassiz’s birthday, and it has been so affectionately remembered here that it is difficult to believe ourselves in a foreign country. The Swiss citizens gave him a dinner yesterday on the eve of the anniversary, where everything recalled the land of his birth, without excluding the land of his adoption. The room was draped with the flags of all the Cantons, while the ceiling was covered by two Swiss national flags, united in the centre just above his own seat by the American flag, thus recognizing at once his Swiss nationality and his American citizenship.[[33]] The Brazilian flag which gave them all hospitality and protection had also an honored place. The fête is reported to have been most genial and gay, closing with a number of student songs in which all bore their share, and succeeded by a serenade under our windows. To-day our room is festive with flowers and other decorations, and friendly greetings on every side remind us that, though in a foreign land, we are not among strangers.
June 14th.—Since our return from Tijuca we have been almost constantly in town, Mr. Agassiz being engaged, often from early morning till deep into the night, in taking care of the specimens which come in from every quarter, and making the final preparations for the parties which he intends sending into the interior. The most important of these, or rather the one for which it is most difficult to procure the necessary facilities, is bound for the upper course of the San Francisco. At this point one or more of their number will strike across the country to the Tocantins, and descend that river to the Amazons, while the others will follow the valley of the Piauhy to the coast. This is a long, difficult, but, as we are assured, not a dangerous journey for young and vigorous men. But wishing to anticipate every trouble that may befall them, Mr. Agassiz has made it his business to ascertain, as far as possible, the nature of the route, and to obtain letters to the most influential people for every step of the road. This has been no light task; in a country where there are no established means of internal communication, where mules, guides, camaradas, and even an armed escort may be necessary, and must be provided for in advance, the preparation for a journey through the interior requires a vast deal of forethought. Add to this the national habit of procrastination, the profound conviction of the Brazilian that to-morrow is better than to-day, and one may understand how it happens that, although it has been a primary object since our arrival to expedite the party to the Tocantins, their departure has been delayed till now. And yet it would be the height of ingratitude to give the impression that there has been any backwardness on the part of the Brazilians themselves, or of their government, to facilitate the objects of the expedition. On the contrary, they not only show a warm interest, but the utmost generosity, and readiness to give all the practical aid in their power. Several leading members of the Cabinet, the Senate, and the House of Representatives have found time now, when they have a war upon their hands, and when one ministry has been going out and another coming in, not only to prepare the necessary introductions for these parties from Rio to the Amazons, but also to write out the routes, giving the most important directions and information for the separate journeys.[[34]] Yet with the best will in the world the Brazilians know comparatively little of the interior of their own country. It is necessary to collect all that is known from a variety of sources, and then to combine it as well as may be, so as to form an organized plan. Even then a great deal must be left to be decided in accordance with circumstances which no one can foresee. No pains have been spared to anticipate all the probable difficulties, and to provide for them as far as it is humanly possible to do so; and we feel that this journey, a part of which has been made by very few persons before, has never been undertaken under better auspices. This party will explore the upper course of the Rio Doce, the Rio das Velhas, and the San Francisco, with the lower course of the Tocantins and its tributaries, as far as they can; making also collections of fossils in certain regions upon the route. Another party, starting at about the same time, is to keep nearer the coast, exploring the lower course of the Rio Doce and the San Francisco. Mr. Agassiz thus hopes to make at least a partial survey of this great water system, while he himself undertakes the Amazons and its tributaries.[[35]] In the mean time, the result of the weeks he has been obliged to spend in Rio, while organizing the work of these parties and making the practical arrangements for its prosecution, has been very satisfactory. The collections are large, and will give a tolerably complete idea of the fauna of this province, as well as a part of that of Minas Geräes. A survey of the Dom Pedro Railroad, made under his direction by his two young friends, Messrs. Hart and St. John, is also an excellent beginning of the work in this department, and his own observations on the drift phenomena have an important bearing on the great questions on which he hoped to throw new light in coming here. The closing words of a lecture delivered by him last evening at the Collegio Dom Pedro Segundo will best express his own estimation of the facts he has collected in their bearing on the drift phenomena in other parts of the world. After giving some account of the erratic blocks and drift observed by him at Tijuca and already described in his letter to Mr. Peirce, he added: “I wish here to make a nice distinction that I may not be misunderstood. I affirm that the erratic phenomena, viz. erratic drift, in immediate superposition with partially decomposed stratified rock, exist here in your immediate neighborhood; I believe that these phenomena are connected, here as elsewhere, with the action of ice. It is nevertheless possible that a more intimate study of these subjects in tropical regions may reveal some phase of the phenomena not hitherto observed, just as the investigation of the glacial action in the United States has shown that immense masses of ice may move over a plain, as well as over a mountain slope. Let me now urge a special study of these facts upon the young geologists of Rio, as they have never been investigated and their presence is usually denied. If you ask me, ‘To what end?—of what use is such a discovery?’—I answer, It is given to no mortal man to predict what may be the result of any discovery in the realms of nature. When the electric current was discovered, what was it? A curiosity. When the first electric machine was invented, to what use was it put? To make puppets dance for the amusement of children. To-day it is the most powerful engine of civilization. But should our work have no other result than this,—to know that certain facts in nature are thus and not otherwise, that their causes were such and no others,—this result in itself is good enough, and great enough, since the end of man, his aim, his glory, is the knowledge of the truth.”
One word upon these lectures, since we are told by the Brazilians themselves that the introduction of public lectures among them is a novelty and in a certain sense an era in their educational history. If any subject of science or letters is to be presented to the public here, it is done under special conditions before a selected audience, where the paper is read in presence of the Emperor with all due solemnity. Popular instruction, with admittance for all who care to listen or to learn, has been hitherto a thing unknown. The suggestion was made by Dr. Pacheco, the Director of the Collegio Dom Pedro II., a man of liberal culture and great intelligence, who has already done much for the progress of education in Rio de Janeiro; it found favor with the Emperor, who is keenly alive to anything which can stimulate the love of knowledge among his people, and at his request Mr. Agassiz has given a course of lectures in French on a variety of scientific subjects. He was indeed very glad to have an opportunity of introducing here a means of popular education which he believes to have been very salutary in its influence among us. At first the presence of ladies was objected to, as too great an innovation on national habits; but even that was overcome, and the doors were opened to all comers, the lectures being given after the true New England fashion. I must say that, if the absolutely uninterrupted attention of an audience is any test of its intelligence, no man could ask a better one than that which Mr. Agassiz has had the pleasure of addressing in Rio de Janeiro. It has also been a great pleasure to him, after teaching for nearly twenty years in English, to throw off the fetters of a foreign tongue and speak again in French. After all, with a few exceptions, a man’s native language remains for him the best; it is the element in which he always moves most at ease.
The Emperor, with his family, has been present at all these lectures, and it is worthy of note, as showing the simplicity of his character, that, instead of occupying the raised platform intended for them, he caused the chairs to be placed on a level with the others, as if to show that in science at least there is no distinction of rank.[[36]]