McM., J. P., Duerden's West Indian Madrepo- rarian Polyps, 80; Haller's Lehrbuch der ver- gleichenden Anatomie, 368; Plate's Ueber die Bedeutung Darwinische Selections princips, 628 623; Anthropology at the British Assoc., 716 MACMILLAN, C., Biological Laboratory at the Tor- Malaria Expedition to the Gambia, 381 Man, Cultivated, Definition of, C. W. ELIOT, 76 MANN, C. R., Drude's Theory of Optics, 432 Mann, C. R., Advanced Optics, G. F. HULL, 661 Marine, U. S., Hospital Service, W. WYMAN, 289; Biological Survey of Univ. of California, W. Massachusetts Inst. Technology Geological Journal Mathematical Society, American, F. N. COLE, 410, Mathematics, Association of Teachers of, in Mid- Matter, Modern Views of, 122 MAY, D. W., Relation of Lime and Magnesia to MAYER, A. G., Bahamas vs. Tortugas as a Station Mendel's Law of Heredity, W. E. CASTLE, 396 MENDENHALL, W. C., Technical Education, 295 Mercury, Specific Heat of, P. R. HEYL, 56 MERRIAM, J. C., Triassic Ichthyosauria, 31 MERRITT, E., Radioactive Substances, 41; Amer- Metabolism, Relation of Lime and Magnesia to, Meteoric Fall, Bath Furnace, A. M. MILLER, 243 L. ROTCH, 113; Investigation, Methods of, W. Meteorology, Current Notes on, R. DEC. WARD, 90, 154, 185, 217, 314, 345, 505, 731, 795; at MILLER, A. M., Bath Furnace Meteoric Fall, 243 Millikan, R. A., Mechanics, Molecular Physics and Minerals and Gems, Action of Radium, Roentgen MITCHELL, S. A., N. Y. Acad. of Sei., Astronomy, Physics and Chemistry, 559, 727 MORSE, M., Unusual Abundance of Myriapods, 59 Moseley Educational Commission, 505 MÜLLER, G., Bailey's Discussion of Variable Stars MÜNSTERBERG, H., International Congress of Arts and Science at St. Louis, 559, 788 MURBACH, L., Gonionemus versus Gonionema, 373 Museum, U. S. National, Exhibit of, at St. Louis, National Academy of Sciences, 688 Naturalists, American Society of, 766 NELSON, A., Wilbur Clinton Knight, 406 New York Academy of Sciences, Geology and J. E. LOUGH, 81, 724; Biology, M. A. BIGE- LOW, 559; Astronomy, Physics and Chemis- try, S. A. MITCHELL, 559, 727; Zoological O., H. F., New York Zoological Park, 218; Re- Ohio State University, Lake Laboratory, 92 Onondaga Acad. of Sci., T. C. HOPKINS, 530 Ornithological Club, Michigan, A. W. BLAIN, JR., Ornithologists' Union, American, J. H. SAGE, 783 Oxalate of Lime in Plants, H. W. WILEY, 115 Paleontologists, Vertebrate, Society of the, S. W. Paleontology, Vertebrate, at the Carnegie Mu- Parker, G. H., Willey's Zoological Results, 179 Parthenogenetic Workers, Origin of Female and Worker Ants from the Eggs of, W. M. Pathology, Modern, An aspect of, S. FLEXNER, 3 Philosophical Society of Washington, C. K. Phototropism under Light-rays of Different Wave- Physical Society, American, E. MERRITT, 662 Physiography, The Frontier of, W. H. HOBBS, 538 Physiology and Hygiene, Public School Training in, W. T. SEDGWICK and T. HOUGH, 353 Plant, Upland, Societies of Kent Co., Mich., F. Publications, Antedated, J. A. ALLEN, 631 Radioactive Substances, E. MERRITT, 41 Radium, 347; and Cancer, A. G. BELL, Z. T. SOWERS, 155; and Helium, 186; A Possible Raphides, Protective Function of, T. H. KEARNEY, Reed, Walter, Memorial of, 316 Reflexes, Some Insect, V. L. KELLOGG, 693 Remains, Bear and Deer, on Onondaga Lake, W. M. SMALLWOOD, 26; Human, Evidences of, in Rhodes Scholarships, 156, 834 RICHARDS, H. M., Biological Laboratory at the Right-handedness, A. F. CHAMBERLAIN, 788 RITTER, W. E., Marine Biological Survey Work ROLFS, F. M., Rhizoctonia solani, 729 Rothschild and Jordan's Revision of Lepidopter- Rowland and FitzGerald, Collected Papers of, Rubber Tree, Central American, New Species of, RUSSELL, I. C., The Pelé Obelisk, 792 SAGE, J. H., American Ornithologists' Union, 783 St. Louis Academy of Sciences, W. TRElease, Salisbury, Lord, as a Man of Science, 440 Salts, Soluble, found in Soils, F. H. KING, 343 Science, Limits of, W. T. THISELTON-DYER, 138, 141, 143; K. PEARSON, 140; J. BURDON-SAND- ERSON, 140; QUE SÇAIS-JE?, 142; E. R. LANKESTER, 143; O. LODGE, 145; Relation of, to Common Life, J. M. MACFARLANE, 169; and Medicine in the Modern University, C. S. SHERRINGTON, 675 Scientific Books, 15, 52, 80, 112, 146, 179, 208, 241, 271, 336, 366, 409, 432, 470, 497, 529, 556, 593, 627, 661, 748, 785, 824; Notes and News, 28, 60, 93, 124, 157, 191, 220, 252, 285, 316, 348, 382, 413, 445, 476, 508, 541, 571, 606, 636, 669, 702, 733, 766, 798, 837; Jour- nals and Articles, 54, 148, 180, 209, 242, 435, SEDGWICK, W. T., and T. HOUGH, Training in SEIDELL, A., Washington Chemical Soc., 828 SHATTUCK, G. B., Expedition to Bahama Islands, SHAW, W. N., Methods of Meteorological Investi- SHEDD, J. C., The Word Barometer, 278 SHERRINGTON, C. S., Science and Medicine in the SHIVER, F. S., Clemson College Science Club, 691, Shorter Articles, 26, 59, 87, 115, 149, 182, 211, 244, 280, 303, 338, 371, 412, 436, 473, 501, 537, 563, 604, 633, 693, 729, 760, 792, 829 SLOCUM, W. F., Medical Research Laboratory of Small's Flora of Southeastern United States, F. SMALLWOOD, W. M., Bear and Deer Remains on SMITH, E. A., and T. H. ALDRICH, Grand Gulf Societies and Academies, 17, 54, 81, 148, 210, Soils, Chemistry of, as related to Crop Produc- Solar and Terrestrial Changes, Simultaneous, N. SOWERS, Z. T., and A. G. BELL, Radium and SPITZKA, E. A., Dangers of Formal, 87; Brain of Japanese, 371; Brain-weight of Brothers, 699 Spodumene, New Lilac-colored, G. F. KUNZ, 280 STANTON, T. W., and J. B. HATCHER, Judith River STEARNS, R. E. C., Eucalypts in the Philippines, STEVENS, W. LEC., Cheston, Dean and Timmer- chanics, Molecular Physics and Heat; San- ford's Elements of Physics; Andrews and Howland's Elements of Physics; Gage's In- troduction to Physical Science; Lehfeldt's Physics; Edser on Light; Chwolson's Lehr- STEVENSON, J. J., J. Peter Lesley, 1 Thermodynamics, Graphics of, R. H. THURSTON, THISELTON-DYER, W. T., The Limits of Science, Thompson, Elizabeth, Science Fund, 442 THOMSON, E., Electricity at High Pressures, 337 Thurston, Robert Henry, 609; Resolutions of Fac- ulty of Cornell Univ. on Death of, T. F. TIGHT, W. G., Higher Educational Institutions of Tissue, of Strasburger, M. C. FERGUSON, 308 TITTMANN, O. H., Coast and Geodetic Survey, 33 Torrey Botanical Club, F. S. EARLE, 630, 690, Toxic Effect of H and OH Ions on Seedlings of Transvaal, Vegetation of, J. B. DAVY, 696 TRELEASE, W., St. Louis Acad. of Sci., 688, 753 TRUE, A. C., New Agricultural Education, 684 TUCKER, R. H., and G. E. HALE, Fifth Satellite of UNDERWOOD, W. L., A New Mosquito, 182 Vaccination, A Case for, C.-E. A. WINSLOW, 101 Vaughan, Dr. V. C., Twenty-fifth Anniversary of VEATCH, A. C., Geology of Long Island, 213; and Vernon, H. M., Variation in Animals and Plants, Visual Phenomenon, Hitherto Undescribed, G. M. GOULD, 536; E. B. TITCHENER, 603; P. Vulcanism, Absorbed Gases and, A. C. Lane, 760 W., R. DEC., Arrhenius's Physik, 498 W., R. S., Collected Papers of Rowland and Fitz- WADSWORTH, F. L. O., Exchanges offered by Alle- WARD, R. DEC., Current Notes on Meteorology, 90 WARMAN, P. C., A Plea for Better English in Sci- Washburn College Observatory and Physical Lab- Watkins, John Elfreth, M. BENJAMIN, 300 WEAD, C. K., Philosophical Society of Washing- WEBBER, H. J., Botanical Society of Washington, WEBSTER, F. M., Theobald's Report on Economic WEBSTER, F. S., Pittsburgh Academy of Science, WEED, C. M., Eliot and Soulé on Caterpillars and Weevil, Cotton Boll, Mexican, L. O. Howard, 693 and Archeological Survey of California, 570 WHEELER, W. M., Dodge's General Zoology, 824; Origin of Female and Worker Ants from the Eggs of Parthenogenetic Workers, 830 WHIPPLE, G. C., Whinery on Municipal Public WHITE, G. F., Oertel's Medical Microscopy, 434 WILEY, DE W. C., and R. ARNOLD, Geological So- ciety of American Universities, 691 WILEY, H. W., Oxalate of Lime in Plants, 115 129; and O. P. HAY, The Society of Verte- WINSLOW, C.-E. A., A Case for Vaccination, 101 WOODS, A. F., Bacterial Spot, a New Disease of WOODWARD, C. M., New Opportunity for Second- WOODWARD, R. S., Education and the World's Work of To-day, 161; International Confer- WYMAN, W., U. S. Marine Hospital Service, 289 X., A Possible Use for Radium, 338 Yellow Fever, Animal Parasite supposed to be Zoology, Marine, Bahamas vs. Tortugas for Re- A WEEKLY JOURNAL Devoted to THE ADVANCEMENT OF SCIENCE, PUBLISHING THE OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION EDITORIAL COMMITTEE: S. NEWCOMB, Mathematics; R. S. WOODWARD, Mechanics; E. C. PICKERING Astronomy; T. C. MENDENHALL, Physics; R. H. THURSTON, Engineering; IBA REMSEN, Chemistry; CHARLES D. WALCOTT, Geology; W. M. DAVIS, Physiography; HENRY F. OSBORN, Paleon- tology; W. K. BROOKS, C. HART MERRIAM, Zoology; S. H. SCUDDER, Entomology; C. E. BESSEY, N. L. BRITTON, Botany; C. S. MINOT, Embryology, Histology; H. P. PROFESSOR J. PETER LESLEY, born in Philadelphia, Pa., September 17, 1819, died in Milton, Mass., June 1, 1903. After graduation at the University of Pennsylvania in 1838, J. P. Lesley served as aid for a year on the First Geological Survey of Pennsylvania. In 1840 he was assigned to independent work in the com- plicated northeastern area for several months, after which he was associated with Mr. James T. Hodge in the coal region of the southwestern counties. During the next year he made a reconnaissance of the coal deposits in western Pennsylvania and closed the season's work with a revision of Whelpley's studies in the anthracite re- The abrupt ending of the survey in 1841 scattered the assistants, and Lesley went to Princeton Seminary, where, to use his own words, he 'indulged in the luxury of a course in theology.' But while studying theology he had no opportunity to neglect geology; his skill as a geological draughts- sylvania geological map, to reduction of vertical sections to a uniform scale and to construction of cross-sections. Having completed his theological course, Lesley was licensed to preach in 1844 by the Presbytery of Philadelphia and at once went to Europe, where he made a pedestrian tour through France and Germany, which he rounded out with a brief course of study at the University of Halle. Returning to America he undertook colportage work in northern Pennsylvania for the American Tract Society, which he pursued with characteristic energy and success for two years. In December, 1846, Professor Rogers asked him to come to Boston, where for five months he prepared duplicates of the state map and of the geological sections, which were to be deposited in the State Capitol at Harrisburg. While in Boston he received and accepted a call to the pastorate of the Congregational church at Milton, Mass., where he remained until 1851. In this interval his views respecting some theological questions developed along lines not wholly acceptable to his ministerial associates, so that at the end of four years he resigned his charge, abandoned the ministry and returned to Philadelphia, where he began practice as a consulting geologist. At once his services were sought again by Professor Rogers, who had obtained an appropriation for publication of the final report, and for more than a year he was engaged upon revision for that report. Thenceforward for forty years his labor was incessant; there seemed to be no limit to his capacity for work. He was recognized at once as the most competent of geological experts and his time was fully retained. Yet from 1855 to 1859 he was secretary of the American Iron Association, for which he published in 1859 a huge volume, the 'American Manufacturers' Guide,' a remarkable compendium of theory, practice and statistics, which even now is of great value. For twenty-seven years he was secretary and librarian of the American Philosophical Society, rarely absent from meetings and seldom failing to present a paper or to take part in the discussions. He made elaborate surveys of the Cape Breton coal field, of the Pennsylvania Coke region, of the Cumberland Valley iron ores, of the Tennessee coal area, of the North Carolina iron ores; while he found abundance of time to learn several languages and to prosecute special studies in various departments of literature and philosophy. philosophy. In 1872 he was made professor of geology and dean of the faculty of science in the University of Pennsylvania; but in 1878, owing to the pressure of other duties, he resigned the deanship. The Second Geological Survey of Pennsylvania was authorized in 1874, and he was placed in charge of the work. This post he retained until 1893, when sudden and complete failure of health compelled him to relinquish it. He retired to Milton, where he remained until his death. His labor was unremitting during the twenty years of service upon this survey. He read the report of every assistant and prepared most of the admirable indices which make those reports so available; in many cases he drew the base for the maps and sometimes even transferred the outcrop lines from manuscript sent in by the field assistants. He maintained that there was no other way by which he could acquire complete mastery of the facts contained in the reports. He wrote long prefaces to most of the volumes, discussing the results, and in several cases he rewrote reports that the matter might be presented in a more systematic way. These prefaces and editorial notes did not always seem to the authors to be either necessary or val |