SCIENCE^ADVERTISEMENTS 



Marine Biological Laboratory 



Woods Hole, Mass. 



INVESTIGATION Facilities for resoach in Zoology, 

 Embiyology, Physiology and Bot- 

 Entire Year any. Seventy -six private labora- 



tories, SlOO each for not over three 

 months. Thirty tables are avail- 

 able for beginners i n research who 

 desire to work under the direction 

 of members of the staff. The fee 

 for such a table is $50.00. 



July 3 to August 13. ^^^^^ ^°^^°f J'' Embryology. Physi- 

 ^ -g ology and Moiphoiogy and Taxo- 



■'^^^ nomy. ,of the Algae. Each course 



reauires the f,ull time of the student. 

 FQe;S50.' Alecture course on the 

 Philosophical Aspects of Biology 

 and" Aihed ■ Sciences is also offered. 



SUPPLY " ^Animals and Jilants, preserved, liv- 



i ng, and in em^bryonic stages. Pre- 

 eerved taaterial of all types of 

 animals ai ' * " 

 worts an* 

 dasswork, oi for the museum. Liv- 

 ing mateiial furnished in season 

 as ordered. _ Price lists of Zoological 

 fbud Botanical materia 1 sent on ap- 

 fclicatioia. State which is desired. 

 For price li^ts and all information 

 regarding material, address 



GEO. M. GRAY, Curator, Woods Hole, Mass. 

 The annua ] announcemejit will b.e'sent on application to The 

 Director, Marine Biologicalt-abdratoryVWoods Hole, Mass. 



Hough and Sedgwick's 



Human Mechanism 



Revised Edition 



Emphasis is placed on hygiene and sanita- 

 tion rather than on anatomy. While the pupil 

 learns the structure of the human mechanism 

 he learns also how to keep that mechanism in 

 order. This book, which has had a profound 

 influence, has been brought completely up to 

 date through the addition of the two new chap- 

 ters, "Hygiene of Mouth, Nose, and Throat, 

 Focal Infections " and " Communicable Dis- 

 ease," and the rewriting of large parts of many 

 others. The hygienic deductions are scholarly 

 and accurate. The series of illustrations is note- 

 worthy for its educational value. 



In one volume, 572 pagei, illustrated, $2.00 



In two volumes: Volume 1,315 pages, illustrated, 



$1.40. Volume II, 277 pages. Illustrated, $1.35 



Ginn and Company 



Boston New York Chicaso London 

 Atlanta Dallas .Columbus San Francisco 



THE PLEISTOCENE FAUNA FROM 

 HAWVER CAVE 



By Chester Stock .....$.60 



Six New Mammals from the Mohdve Deatirt and Inyo Re- 

 gions o{ California, by Joiseph Grinoell 

 and 



Kotes on Some Bats from Alaska and British Columbia, 

 by Hilda Wood GrinneU 15 



A Quantitative Analysis of the Molluscan Fauna of San 

 Francisco Bay, by E.L. Packard 40 



Mew Mammalia from the Id^b Formation 

 and 



Notes Eon the Systematic Position of the Wolves of the 

 Cania diru Group 



and- 



New Puma-like Cat from Ranoho'La Brea, by John C. 

 Merriam 20 



Tha University of California'^ssues publications in the follow 

 ins series among others : .. Agricultural Boienocs, American 

 Aroliaeology and Ethnology, Botany, Economics, Entomology, 

 Geography, Geology, Mathematics, Pathology, Physiology, 

 Psyohology, Zoology, Memdirs of the University of California, 

 Bulletins and Publications of the Lick Observatory. 



Complete lists of titles and prices will be sent on request. 



UNIVERSITY OF CAUFORNIA PRESS 



Berkeley, California 280 Madison Are., New York 



Publications of 

 Carnegie Institution of Washington 



The publications of the Institution now number over 350 

 volumes, the sabjeots including Anatomy, Arohfeology, Astron- 

 omy, Botany, Chemiatry, Economics and Sociology, Embry- 

 ology, Experimental Evolution and Heredity, Engineering, 

 Folk-Lore, Geology, History, International Law, Literature* 

 Mathematics, Medicine, Nutrition, Philoogy, Physics, Zool- 

 ogy. Classified and descriptive lists will be sent postpaid 

 on application. 



In Press 



263. (Appendix.) Breitenbecher, J. K. The Relation of 

 Water to the Behavior of the Potato Beetle in a Des- 

 ert. Octavo. 



265. LAtTGHLiN, Harry H. The Duration of the Several 

 Mitotic Stages in the Root-tip Cells of the Onion. 

 Octavo. 



266. Miles, Walter R. Effect of Alcohol "on Psycho- 

 Physiological Functions. Octavo. 



270. Reichert, E. T. A Bichemic Basis for the Study of 

 Problems of Taxonomy, Heredity, Evolution, etc., with 

 especial reference to the Starches and the Tissues of 

 Parent-stocks and Hybrid-stocks, and to the Starches 

 and the Hemoglobins of Varieties, Species, and Genera. 

 Quarto. 



All communications ahould be addresied to 



CARNEGIE INSTITUTION OF WASHINGTON 

 WASHINGTON, D. C. 



