SCIENCE-ADVERTISEMENTS 



Marine Biological Laboratory 



Woods Mole, Mass. 



INVESTIGATION 



Entiro Year 



INSTRUCTION 



July 3 to August 13, 

 1918 



Facilities for reseach in Zoology, 

 Embiyology, Physiology and Bot- 

 any. Seventy-six private labora- 

 tories, $100 each for not over three 

 months. Thirty tables are avail- 

 able for beginners in research who 

 desire to work under the direction 

 of members of the staff. The f«e 

 for such a table is $50.00. 



Courses of laboratory instiuction 

 with lectures are offered in Inverte- 

 brate Z oology » Embryology, Physi- 

 ology and Morphology and Taxo- 

 nomy of the Algae. Each course 

 requires the full time of the student. 

 Fee, S 50. Alecture course on the 

 Philosophical Aspects of Biology 

 and Allied Sciences is also offered. 



Animals and plants, preserved, Uv- 

 i ng, and i n embryonic stages. Pre- 

 served material of all types of 

 animals and of Algae, Fimgi, Liver- 

 worts and Mosses furnished for 

 claaswork, oi for the museum. Liv- 

 ing mateiial furnished in season 

 as ordered. Price lists of Zoological 

 and Botanical materia Isent on ap- 

 plication. State which is desired. 

 For price lists and all information 

 • regarding material, address 



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



The annua 1 announcement will be sent on application to The 

 Director, Marine Biological Laboratory, Woods Hole, Mass. 



SUPPLY 

 DEPARTMENT 



Open the Entire Year 



A DICTIONARY FOR 

 EVERY LIBRARY 



GOULD'S 



MEDICAL 



DICTIONARY 



(THE PRACTITIONER'S) 



Flexible Cloth, Marbled Edges, e^ 7e 

 Round Corners 3)^. I u 



(With Thumb Index $3.25) 



71,000 Words 



Pronunciation— DeflnitloD--Derlvation 



Includes many of tlie words of allied 

 sciences 



P. BLAKISTON'S SON & CO. 



Publishers PHILADELPHIA 



THE PLEISTOCENE FAUNA FROM 

 HAWVER CAVE 



By Chester Stock $.60 



Six New Mammals from the Mohave Desert and Inyo Re- 

 gions of California, by Joseph Grinnell 

 and 



Notes on Some Bats from Alaska and British Coliunbiat 

 by Hilda Wood Grinnell 15 



A Quantitative Analysis of the Molluscan Fauna of San 

 Francisco Bay, by E. L. Packard 40 



New Mammalia from the Idaho Formation 



and 

 Notes on the Systematic Position of the Wolves of the 

 Cania dim Group 



and 



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

 Merriam 20 



Tho TJniTersity of California ■issues publications in the follow- 

 ing aeries ;among others: Agricultural Sciences* American 

 Archaeology and Ethnology, Botany, Economics, Entomology* 

 Geography, Geology, Mathematics, Pathology, Physiology, 

 Peychology, Zoology, Memoirs 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 CALIFORNIA PRESS 



Berkeley, California 280 Madison Ave., New York 



Cooking Gass at the 

 South Dakota State College 



are using gas made by 



The "Detroit" 

 Combination Gas Machine 



for suppljdng gas in Departments of 



Domestic Science 

 Chemistry and Physics 



(Orer 30,000 in daily =ie) 



Laboratory work can be done better, 

 quicker and cheaper by using this gas. 

 Ask for descriptive catalog and names 

 of users in your ^dcinity. 



Detroit Heating & Lighting Co. 



612 WIglit St. 



Detroit, Mich. 



