American Institute of Electrical Engineers, 283, 337, 348, 359-362 American Institute of Mining and Metallurgical Engineers, 359 _American Journal of Science_, 299 American Mathematical Society, 352 American Philosophical Society, 363 American Physical Society, 351-353, 358, 360 American scientific progress, 279-384 _et passim_ American Society of Civil Engineers, 359 American Society of Mechanical Engineers, 359, 364 American Telephone and Telegraph Company, 335, 338-340, 342, 345, 384 Americanization, 318 _et passim_ Ames, Joseph Sweetman, 256 Ampère, 187, 257 Appel, 257 Arago, 257 Archimedes, 193, 194, 221 Aristides, 92 Aristotle, 20 Armour & Co., 344 Armstrong, Major E. H., 19, 342, 358 Armstrong, Hamilton Fish, 316 Arran (island), 212-217 Aspern (battle), 6 _Astronomy and Astrophysics_, 293 Atomic structure, 356, 357, 384-386. _See also_ Matter, nature of, _and_ Electrons Bacon, Roger, 204 Bagpiper, Serbian, 19 _et passim_ Baker’s wagon, painting of, 62, 63 Banat, life and experiences in, 2-22, 95, 96, 152, 157-166, 324, 346 Barnard, President, of Columbia University, 104, 128, 135, 183, 185, 197, 199-202, 205, 220, 230, 278, 290, 291, 320, 375 Barrett, Lawrence, 89 Batikin, Baba, 6-8, 12, 29, 46, 112, 131 Becquerel, 350 Beecher, Doctor Henry Ward, 105-108, 124, 129, 136, 156, 163 Belgrade, experiences in, 153, 162 Belgrade University, 317 Bell, Alexander Graham, 299, 300, 319 Berlin, experiences and study in, 229-278, 309, 318, 338 Berlin, studies at University of, 229-278, 318, 338 Bessemer process, 259 _Bible, The_, 10, 18, 20, 21, 67, 243, 245, 246, 381, 382 Bilharz, 85-95, 100-104, 106, 108, 112, 113, 130, 131, 140, 247, 318 Biscuit factory experiences, 72-76, 78-95 Bismarck, 247, 253, 261, 275 Booth, Edwin, 89, 129 Bowery Mission, 66, 67, 84 Bradley, 285 Brown (New Jersey farmer), 66-68 Browning, Oscar, 143, 171-173 Bryant, William Cullen, 89, 93, 102 Budapest experiences, 25, 30, 150-152, 155, 162 Bukovala’s mill, 168, 169, 243 Bull, Doctor, 307 Burgess, Professor, 128, 135 Butler, Prescott Hall, 307, 308 Butler, President Nicholas Murray, 60 Cambridge University, 143-146, 156, 164, 169-187, 190-211, 309, 318, 321, 338, 349, 381 Campbell, 187, 211, 213, 228 Canal rays, 304 Cane rush, Columbia, 114, 117, 118 Carnegie, Andrew, 259, 360-365, 375 Carnegie Corporation of New York, 371 Carnegie Institution of Washington, 362, 366 Carnot, Sadi, 186, 193 Carter, Mr. (of Norfolk), 328 Carty, General J. J., 384, 387 Castle Garden, 1, 2, 39-41, 43, 45, 98, 99, 104, 105, 142, 148, 278 _et passim_ Cathode rays, 304, 305 _et passim_ Cavendish, Lord, 273 Cavendish Physics Laboratory, 183, 198, 199, 273 Cayley, 192 Centennial Exposition, Philadelphia, 78 Century Club, 308 Chanler, John Armstrong, 135