It would lead us too far away if we were to follow philological science into modern languages. As a matter of course, the English language and literature are the most studied; in fact, English philology has had its real home in the New World since the days of Child. Francis James Child, one of the most winning personalities in the history of American scholarship, has contributed much on Chaucer and ancient English dramas; and as his great work, has gathered together English and Scottish ballads into a collection of ten volumes. This work has often been esteemed as America’s greatest contribution to philology. Kittredge, who has succeeded Child at Harvard, works on much the same lines. Lounsbury is known especially for his brilliant works on Chaucer; Manley has also studied Chaucer and the pre-Shakesperian drama; Gummere the early ballads, while Wendell and Furness are the great Shakesperian scholars. The Arthurian legends have been especially studied by Schofield, Mead, Bruce, and others; the Anglo-Saxon language by Bright, Cook, Brown, and Callaway. Lowell was the first great critic of literature, and he has been followed by Gates and many others. The belles-lettres themselves have given rise to a large historical and critical literature, such as the admirable general works of Steadman, Richardson, and Tyler, and the monographs by Woodberry, Cabot, Norton, Warner, and Higginson. The very best work, however, on American literature, in spite of all aspersions cast on the extreme aristocrat, is Barrett Wendell’s “Literary History of America.” We might mention a long list of works on Romance and Germanic languages and literature. At least emphasis must be laid on one, Kuno Francke’s extraordinary book on “Social Influences in German Literature,” the work of the most gifted herald of German culture in America. We may also mention the works of Thomas and Hempl in Germanic, and Todd, Elliot, and Cohn in romance languages.
Political economy is the favourite study of the American, since the history of this country has been determined by economic factors more directly than that of any other nation, and since all the different economic periods have been lived through in the still surveyable past. In a sense, the country looks like a tremendous experimental laboratory of political economy. The country is so unevenly developed that the most diverse economic stages are to be found in regions which are geographically near each other, and everything goes on, as it were, under the scientific magnifying glass of the statistical student. Remarkably enough, the actual history of economics has been rather neglected in American studies, in spite of many beginnings made in Germany on the history of American economics. The chief attention of the nation has been given rather to the systematic analysis and deductive investigation of special conditions. In political economy there are, of course, first the well-known agitators like Henry Carey, the great protectionist of the first half of the century; Henry George, the single-tax theorist, whose book, “Progress and Poverty,” found in 1879 extraordinary circulation; and Bellamy, whose “Utopia” was in much the same style: and the political tracts on economic subjects are far too numerous to think of mentioning. The really scientific works form another group. At first we find the pioneer efforts of the seventies and eighties—Wells’s work on tariff and commerce, Charles Francis Adams’s work on railways, Sumner’s on the history of American finance, Atkinson’s on production and distribution, Wright’s on wages, Knox’s on banking, and the general treatises of Walker, who conducted the censuses of 1870 and 1880. In recent times the chief works are those of Hadley on railroads, of Clark on capital, of James on political finance and municipal administration, of Ely on taxation, of Taussig on tariff, silver and wages, of Jenks on trusts, of Brooks on labour movements, of Seligman on the politics of taxation, of H. C. Adams on scientific finance, of Gross on the history of English economics, of Patten on economic theory, and of Lowell on the science of government. Moreover, the political economists and students of government have an unusually large number of journals at their disposal. In sociology there are Giddings, Small, and Ward, known everywhere, and after them Willcox, Ripley, and others.
We have spent too much time over the historical disciplines. Let us look at the opposite pole of the scientific globe from the mental sciences to the natural sciences, and at first to mathematics. Mathematicians were especially late in waking up to really scientific achievements; and this was scarcely ten years ago, so that all the productive mathematicians are the younger professors. Of the older period, there are but three mathematicians of great importance—Benjamin Peirce, perhaps the most brilliant of American mathematicians, and his pupils, Hill and Newcomb. Their chief interest has been mathematical astronomy. Of their generation are also Willard Gibbs in mathematical physics, McClintock in algebra, and Charles Peirce in mathematical logic. In the last ten years, it is no longer a question of a few great names. The younger generation has taken its inspiration from Germany and France, and is busily at work in pure mathematics; there are Moore and Dixon, of Chicago; Storey and Taber, of Clark; Böcher and Osgood, of Harvard; White at Evanston; Van Vleck at Wesleyan, and many others.
We find again, in the natural sciences, that the American by no means favours only practical studies. There is no less practical a science than astronomy, and yet we find a series of great successes. This is externally noticeable in a general interest in astronomy; no other country in the world has so many well-equipped observatories as the United States, and no other country manufactures such perfect astronomical lenses. America has perfected the technique of astronomy. Roland, for instance, has improved the astronomical spectroscope, and Pickering has made brilliant contributions to photometry. The catalogue of stars by Gould and Langley is an indispensable work, and America has contributed its full share to the observation of asteroids and comets. Newcomb, however, who is the leader since forty years, has done the most brilliant work, in his thorough computations of stellar paths and masses. We should also not forget Chandler’s determination of magnitudes, Young’s work on the sun, Newton’s on meteorites, and Barnard’s on comets.
Surprisingly enough, the development of scientific physics has been less brilliant so far. Only in optics has really anything of high importance been done; but in this field there have been such accomplishments as Michelson’s measurements of lightwaves, Rowland’s studies of concave gratings, Newcomb’s measurements on the speed of light, and Langley’s studies of the ultra-red rays. In all other fields the work is somewhat disconnected; although, to be sure, in the branches of electricity, acoustics, and heat, important discoveries have been made by Trowbridge, Woodward, Barus, Wood, Cross, Nichols, Hall, B. O. Pierce, Sabine, and many others. In purely technical subjects, especially those related to electricity, much has been done of serious scientific importance; and these triumphs in technical branches are, of course, famous throughout the world. From the hand tool of the workman to locomotives and bridges, American mechanics have been victorious. Applied physics has yielded the modern bicycle, the sewing-machine, the printing-press, tool-making machinery, and a thousand other substitutes for muscular labour; has also perfected the telegraph, the incandescent lamp, the telephone and the phonograph, and every day brings some new laurel to the American inventor. But it is not to be supposed that Edison, Tesla, and Bell are the sole representatives of American physics. Quiet scientific work of the highest order is carried on in a dozen laboratories. Meteorology ought to be mentioned as a branch of physics; it has been favoured by the large field of observation which America offers and has developed brilliantly under Ferrel, Hazen, Greely, Harrington, Mendenhall, Rotch, and others.
It is still more true of chemistry than of physics that advance has been independent of the industrial application of science. The leading chemists have all worked in the interests of pure science; and this work started at the beginning of the last century, when Benjamin Silliman, of Yale, the editor of the first magazine for natural science, laid the foundations for his scientific school. He was followed in succeeding generations by Hare, Smith, Hunt, and most notably Cooke, whose studies on the periodic law and the atomic weight of oxygen are specially valuable. Of later men there are Willard Gibbs, the Nestor of chemical thermo-dynamics, who became famous by his theory of the phase rule, and Wolcott Gibbs through his studies on complex acids. Crafts is known for his researches into organic compounds, and Mallet by classical investigations into the atomic weight of aluminum. Other valuable contributions have been Hillebrand’s analysis of minerals, Stieglitz’s organic syntheses, Noyes’s studies on ions, the work of Clark and Richards on atomic weights, Gooch’s technical discoveries, Hill’s synthetic production of benzol compounds, Warren’s work with mineral oils, Baskerville’s study of thorium, not to mention the highly prized text-books of Ira Remsen, the discoverer of saccharin. Among the physiological and agricultural chemists, the best known are Chittenden, Pfaff, Atwater, and Hilgard. The pioneer of physical chemistry is Richards, of Harvard, probably the only American professor so far who has been called to the position of a full professor at a German university. He remained in America, although invited to Göttingen. Bancroft and Noyes are at work on the same branch of chemistry.
The work in chemistry is allied in many ways to mineralogy, petrography, and geology. Oddly enough, mineralogy has centred distinctly at one place—Yale University. The elder Dana used to work there, whose “System of Mineralogy” first appeared in 1837, and while frequently revised has remained for half a century the standard book in any language; Dana’s chemical classification of minerals has also found general acceptance. His son, the crystallographer, worked here, as also Brush and Penfield, who has investigated more kinds of stone than any other living man. Beside these well-known leaders, there are such men as Lawrence Smith, Cooke, Gerth, Shepard, and Wolff. The advances in geology have been still more brilliant, since nature made America an incomparable field of study. Hall had already made an early beginning here, and Dana and Whitney, Hayden and King, Powell and Gilbert, Davis, Shaler, and Branner have continued the work. Remains of the Glacial Epoch and mountain formation have been the favourite topics. And the investigation which has frequently been connected with practical mining interests is among the most important, and in Europe the most highly regarded of American scientific achievements.
Closely related to the geological are the geographical studies. The Government Bureau of Survey figures prominently here, by reason of its magnificent equipment. Most famous are the coast surveys of Pache and Mendenhall, and the land surveys of Rogers, Whitney, and Gannet. The hydrographic investigations of Maury have perhaps had more influence on geography, and his physical geography of the ocean has opened up new lines of inquiry; Guyot has done most to spread the interests of geography. Americans have always been greatly interested in expeditions to dangerous lands, wherefore many Americans have been pioneers, missionaries, and scientific travellers. In this spirit Lewis and Clark explored the Northwest, Wilkes crossed the Pacific Ocean, Perry went to Japan, and Stanley to Africa; others have travelled to South America, and many expeditions have been started for the North Pole since the first expedition of Kane in 1853. Palæontology has been well represented in America, and has contributed a good deal to the advance in geology. Hall commenced the work with studies on invertebrate fossils; then came Hyatt, who studied fossil cephalopods, Scudder fossil insects, Beecher brachiopods; and then Leidy, Cope, Osborne, and above all, the great scientist, Marsh—all of whom have studied fossil vertebrates.
Almost every one of these men was at the same time a systematic zoölogist. Especially in former days, many young men devoted themselves to systematic zoölogy under the leadership of Audubon, whose pioneer work on “The Birds of America” appeared in 1827; then later of Say, the first investigator of butterflies and mussels; and still later of Louis Agassiz, the great student of jelly-fish, hydroids and polyps, whose son, Alexander Agassiz, has carried on the famous studies of coral islands. Besides these men have laboured LeConte, Gill, Packard, and Verrill in the province of invertebrates; Baird, Ridgeway, Huntington, Allen, Meriam, and Jordan in the field of vertebrates. At the present time interest in America as well as in Europe is turning toward histology and embryology. Here, too, the two Agassizes have taken the lead, the senior Agassiz with his studies on turtles, the younger Agassiz in studies on starfishes. Next to theirs come the admirable works of Wyman, Whitman, Brooks, Minot, Mark, and Wilson, and the investigations of Davenport on the subject of variation. The phenomenon of life has been studied now by zoölogists and again by biologists and physiologists. Here belong the researches into the conscious life of lower animals carried on by Lee and Parker, and the excellent investigations of the German-American Jacques Loeb, of California, who has placed the tropisms of animals and the processes of fertilization in a wholly new light. Of his colleagues in physiology, the best known are Bowditch, Howell, Porter, and Meltzer.
The highest organism which the natural scientist can study is man, taken not historically, but anthropologically. The American has been forced to turn to anthropology and to ethnology, since circumstances have put at his hand some hundred types of Indians, with the most diverse languages and customs, and since, moreover, peoples have streamed from every part of the world to this country; millions of African negroes are here, the ground is covered with the remains of former Indian life, and the strange civilizations of Central America have left their remains near by. The Ethnological Bureau at Washington and the Peabody Museum at Harvard have instituted many expeditions and investigations. In recent times the works of Morgan, Hale, Brinton, Powell, Dall, Putnam, McGee, and Boas have opened new perspectives, especially on the subject of the American Indian.