Maturity and Early Decline, J. MAD- MEES, C. E. K., A Photographic Re- Mineral Resources in War, JOSEPH Occupation, Causes of Death by, 572 Race Suicide in the United States, REED, ALFRED C., Coal Mining in REESE, A. M., Reptiles as Food, 545 RETTGER, LEO F., Milk in its Rela- Rilly, A Fossil Lake, EDWARD W. RITTER, WM. E., Science and an Or- The Russia, Public Opinion in, ROBERT Science, The Progress of, 92, 187, SMITH, HARLAN I., The Develop- Soil, Bacterial Activities of a, J. E. Sun and the Weather, C. G. ABBOT, TAYLOR, J. MADISON, Evidences of THOMPSON, WARREN S., Race Suicide WALLIS, WILSON D., Anthropology War, Mineral Resources in, JOSEPH Warfare in France, Applications of Weather, The Sun and the, C. G. Woodlot, JAMES W. TOUMEY 193 Psychology of Conviction, J. JAS- YOUNG, R. T., N. D. Biological Sta- The Fundus Oculi of Birds Especially as Viewed by the Ophthalmoscope A Study in Comparative Anatomy and Physiology by CASEY Illustrated by 145 drawings in the text; also by 61 colored paint- To be had only from H. A. Fox Chicago Savings Bank Building, State and Madison Streets, Chicago SCIENCE PROGRESS A QUARTERLY REVIEW OF SCIENTIFIC THOUGHT, WORK AND AFFAIRS EDITED BY SIR RONALD ROSS, F.R.S., D.Sc., M.D., Etc. SCIENCE PROGRESS owes its origin to an endeavor to found a scientific journal Published early in January, April, July, and October, by John Murray, 50a, Albemarle Street, London, W., England. Annual Subscription, $4.80 (including postage). Single numbers $1.20 (postage 10 cents). A weekly journal, which began publication on January 2, 1915, covering the field of education in relation to the problems of American democracy. Its objects are the advancement of education as a science and the adjustment of our lower and higher schools to the needs of modern life. 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Price, $3.00 net In press THE SCIENCE PRESS LANCASTER, PA. GARRISON, N. Y. SUB-STATION 84, NEW YORK CITY To THE SCIENCE PRESS Lancaster, Pa., and Garrison, N. Y. Please find enclosed check or money order for. in payment for the publications checked above. Date...... Name...... Address....... Thompson's Elementary Lessons in Electricity and Magnetism By SILVANUS P. THOMPSON. Revised by the author Cloth, crown octavo, xv +706 pp., 377 illustrations. $1.50. After a wide use for twenty-one years, this book now comes from the press in a completely revised form, which incorporates the progress of the science during this period, and brings the treatment abreast of the most recent developments in theory and practice. Not only have the various topics taken up in the older book been brought to date and expanded where necessary to meet the needs of teacher and student, but the newer phases of the subject have been covered in the same clear direct manner which made the earlier volume popular as a text. Entirely new chapters are devoted to the Electron Theory, to Wireless Telegraphy, to the Transmission and Distribution of Power, and to Electric Traction. In fact, progress in the development of the industrial applications of electricity has been so great in the past decade as to necessitate the remodeling of the latter half of the book. Throughout the book modern progress in construction and industrial application is described and illustrated by many drawings. The general appearance of the new edition is much more attractive and serviceable than that of the old edition. The type is much larger, the space between lines is greater, and the number of illustrations has been increased by over 25%. Not only has the size of the page been increased, but the number of pages has also been increased by about ten per cent, Although these changes have involved a very heavy increase in manufacturing expense, the retail price is only ten cents more than that of the old edition. The price has been kept unusually low in order to make it possible for instructors to require students in the first general college course on physics to purchase this book in addition to the textbook on general physics. "I think the book, as revised, will be very satisfactory, and, as far as I can judge from a careful inspection, it will meet the requirements of the present day as well as the earlier editions ten or fifteen years ago met the requirements of that day. To a certain extent perhaps a book written at a later date cannot quite meet this requirement because of the growth of the subject treated, but I think the present volume does very well."-Professor C. R. Cross, Head of the Department of Physics in the Massachusetts Institute of Technology. Huxley's Lessons in Elementary Physiology By THOMAS H. HUXLEY, Revised by Joseph Barcroft, Cloth, 12mo, xxiv+604 pp., 185 illustrations. $1.60 A thorough and substantial revision of this historic masterpiece, in which new material and additional illustrations have been included and further text-book apparatus provided. The manner in which Professor Barcroft has made this revision is best described in his preface, from which we quote: "In approaching the revision of 'Huxley's Physiology,' my feelings have been similar to those of an architect to whom is entrusted the restoration of a historic building designed by a master hand. Written by Huxley, the book was revised, and in fact almost rewritten, by Foster. The former was as great a writer as any scientist of his time, the latter may almost be said to have created English Physiology. To 'restore' the work of these men from the dilapidations made by two decades of scientific progress is the task now entrusted to me. The sense of responsibility with which I approach it is, if possible, heightened by the affection which I have for the memory of Foster, who was my master. I have faithfully left untouched any portion of the fabric in which there was not an actual flaw; but where the structure needed repair, it seemed to me due not only to the readers of the book but to the memory of the author, that the repair should be thorough, substantial, and simple. Such have been the principles on which I have tried to carry out my work." Published at 6466 Fifth Ave nue, New York THE MACMILLAN COMPANY On Sale Books are alod "Humanized Science" is what a reviewer calls An Introduction to Science By BERTHA M. CLARK, Ph.D., Head of "Dr. Bertha Clark has attempted, It keeps before the student's mind the evolutionary nature of geologic processes. It gives a clear, simple, logical treatment of the elements. Irrelevant material is omitted. It makes no artificial separation between dynamic and structural geology. It provides an abundance of problems for student solution, including many exercises in reading geologic history from the records left in land forms and rock structures. Parts I and II deal with geological processes, external and internal; Part III with historical geology. 462 pages, illustrated, $1.40 Ginn and Company Boston Chicago London Atlanta Dallas Columbus San Francisco The Ellen Richards Research Prize The Naples Table Association for Promoting Georgetown University Laboratory Research by Women announces the offer of a research prize of $1000.00 for the best thesis written by a woman embodying new observations and new conclusions based on independent laboratory research in Biology (including Psychology). Chemistry or Physics. Theses offered in competition must be in the hands of Chairman of the Committee on the Prize before February 25, 1917. Application blanks may be obtained from the secretary, Mrs. Ada Wing Mead, 283 Wayland Avenue, Providence. R I., JULIEN'S POWER AND FOOT LATHES Use of Geologists, Mineralogists, Petrographers, Metallurgists, Mining Engineers, in SLICING and POLISHING all hard substances, rocks, etc., and in prepa ration of MICROSCOPIC THIN SECTIONS. GUSTAVUS D. JULIEN 3 Webster Terrace NEW ROCHELLE, N. Y. LEARN TO be a watchMAKER BRADLEY POLYTECHNIC INSTITUTE Horological Department PEORIA, ILLINOIS Formerly Parsons Horological Inst. Largest and Best Watch School in America We teach Watch Work, Jewelry, En graving, Clock Work, Optics, Tuition reasonable. Board and rooms near This entire building school at moderate rates. Send for used exclusively as a Catalog of Information. watch school. School of Medicine and Dental Department The Sixty-fourth Session will begin September 28th, 1914, and continue eight and one-half months. Six-Year Collegiate and Medical Course leading to degrees B.S. and M. D. Practica laboratory work under special instructors, in Anatomy, Phys.ology, Chemistry, Histology, Pathology and Bacteriology. Ample facilities for clinical experience and practical work is hospitals of city and in the University Hospital, containing : all over 3000 beds. For particulars address GEORGE M. KOBER, M.D. Dean School of Medicine, 1819 Q Street PATENTS BALDWIN & WIGHT 25 Grant Place, Washington, D. C. Patents, Trade-Marks and Copyrights Practice before the Patent Office, Library of Congress Patent, Trade-Mark and Copyright Courts. Over 20 years' experience. Reference: Columbia National Bank. Washington, D.C Other references furnished if desired. 1 |