SCIENCE 



A ■WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE. 



Pkidat, Mabch 4, 1904. 



The American Association for the Advance- 

 ment of Science: — 

 Section D — Mechanical Science and Engi- 

 neering : Pkofessok WniiAM T. Mageuder 361 



A Reply to Recent Strictures on American 

 Biologists: Dk. Leonhabd Stejnegee 371 



Scietitific Books: — 



Livy-BruM on the Positive Philosophy of 

 Auguste Comte: Professor Lester F. 

 Ward. Miclielson on Light Waves and 

 their Uses; Tuckerman's Index to the Liter- 

 ature of the Spectroscope : C. E. M 376 



Scientific Journals and Articles 381 



Societies and Academies: — 



Anthropological Society of Washington: 

 Dk. Walter Hough. Clemson College Sci- 

 ence Glul : Dr. F. S. Shiver 381 



Discussion and Correspondence: — 



Convocation Week: President Charles S. 

 Howe, Professor J. C. Branner, Dr. Ch. 

 Wardell Stiles, Professor C. Jtjdson 

 Herriok. The Case of William J. Long: 

 Frank M. Chapman. The Metric System: 

 Dr. Alfred C. Lane. Sex Determination 

 in Bees and Ants : Professor W. E. Castle 383 



Special Articles: — 



Araitosis in the Egg Follicle Cells of In- 

 sects: Professor Vernon L. Kellogg. 

 Variations in the Protective Value of the 

 Odoriferous Secretions of Some Heter- 

 optera : Alfred F. Conradi 392 



'Notes on Inorganic Chemistry : — 



MendeUefs Conception of the Ether; At- 

 mospheric Corrosion of Zinc : J. L. H 394 



Current Notes on Meteorology : — 



Meteorological Phenomena of the Mont Pel4e 

 Eruption ; Demtschinsky's Long-range Fore- 

 casts; The ' Line Storm ' Fallacy; The 

 Climate of lotva: Professor R. DeC. Ward 395 



Recent Zoopaleontology : — 



Revised Edition of Zittel's Paleontology ; 

 Tertiary Elasmobranchs from Southern 

 Italy; Jurassic Fishes from Spanish Litho- 

 graphic Limestone; Further Light on the 

 Tremataspidae : Dr. C. E. Eastman 396 



Scientific Notes and News 397 



University and Educational News 400 



MSS. intended for publication and books, etc.. intended 

 for review sboald be sent to the Editor of Science, Garri- 

 sou-on-Hudson, N. Y. 



TEE AMERICAN ASSOCIATION FOR TEE 



ADVANCEMENT OF SCIENCE. 



SECTION D— MECHANICAL SCIENCE AND 



ENGINEERING. 



The work of Section D of the American 

 Association for the Advancement of Sci- 

 ence is in mechanical science and engineer- 

 ing. The section devotes itself to showing 

 the advances which recently have been 

 made in the principles and applications of 

 science in regulating and using the forces 

 of nature. The papers Avhich are pre- 

 sented usually deal with what are com- 

 monly known as the applied sciences, more 

 particularly with those which are based 

 upon physics and chemistry. Under elec- 

 tricity are included its generation, adapta- 

 tion and use on a commercial scale. Under 

 heat are included such practical questions 

 as the generation and use of steam. Under 

 chemistry are included the combustion of 

 coal and other fuels, and the production 

 and use of gas for heating, forging and 

 annealing, and for the generation of power 

 in gas and oil engines; while in the allied 

 science of metallurgy the problems of the 

 mining engineer and metallurgist of iron 

 and steel are included. Under hydraulics 

 we find a long list of problems, the ad- 

 vancement of which has been rapid in re- 

 cent years in the utilization of the results 

 of the work of the sun as a heat agent, and 

 in controlling this same transmuted heat 

 energy when it manifests itself in swollen 

 streams. 



The section is to be congratulated on 

 having had as its chairman Vice-President 

 Calvin M. Woodward, of St. Louis, who is 



