SCIENCE-ADVERTISEMENTS 



Marine Biological Laboratory 



Woods HoIe» Mass. 



INVESTIGATION 



Eatlr* Tear 



INSTRUCTION 



July 3 to Auffust 13 

 191S 



SUPPLY 

 DEPARTMENT 



Opm Um Entin Yew 



Facilities for research in Zoology, 

 Embryology, Pl^rsiology and Bot- 

 any. Seventy-eix private labora- 

 tories. €100 each for not over three 

 months. Thirty tables are avail- 

 able for beginners in research who 

 desire to work tmder the direction 

 of members of the staff. The fee 

 for such a table is $50.00 



Courses of laboratory instruction 

 with lectures are offered in Invert«- 

 brate Zoology, Embryology. Physi- 

 ology and Morphology and Taxo- 

 nomy of the Alj^. Each course 

 roquires the full time of the student. 

 Fee, 950. A lecture course on the 

 Philosophical Aspects of Biology 

 and Allied Sciences is also offered. 



Animals and plants, preserved, liv- 

 ing, and in embryonic stages. 

 Preserved material of all ^ypes of 

 animals and of Algae, Fungi, liver- 

 Torts and Mosses furnished for 

 olasswork, or for the museum. 

 Living material fumiehed in eeason 

 as ordered. Price lists of Zoological 

 Slid Botanical material sent on ap>- 



SUoatiqn. State which ia desired, 

 'off pnee lists and all information 

 regarding material, addrest 



QEO. M . GBAT. Curator. Woods Hole. Man. 



Tha HBanal announcement vill ba sen i on application to The 

 Dinotor, Marine Btologieal Laboratory, Woods Hols. Mass. 



Flora of the Rocky Mountains 

 and Adjacent Plains 



By PER AXEL RYDBERG, Ph.D. 



Curalor in the New York BolsDical Caidco 



8to zii+1110 pages 1917 



Contains descriptions of the native and naturali2ed 

 Flowering Plants and Ferns of Colorado, Wyoming, 

 Montana, Saskatchewan, Alberta, Idaho, Utah, the 

 western counties of Nebraska, South Dakota and 

 North Dakota and the Kootenay districts of British 

 Columbia. 



Published by the author. Price $3.75 net. 

 3304 Rochcimbeau Avenue New York City 



OPTIC PROJECTION 



Prmciplea, iostaUation and use of the Mag'o Lantern, Opaqu* 

 Lantern, Projection Microscope and Moving Picture Machine; 

 700 pages, 400 figs. By SmoN Henkt Gagb. B.8., and 

 Hesbt Phblps Gage, PhX). Postpaid, $3.00. 



THE COMSTOCK PUBLISHING CO.,Itliaca.N.Y. 



Memoirs of the Wistar Institute of Anatomy imd 

 Biology. No. 6, 1915 



THE RAT 



Data and Reference Tables. 278 Pages. 89 Tables. 



Bibliography. 

 Compiled and Edited by HENRY H. DONALDSON. 



Postpaid $3.00. 



The Wistar Institute Philadelphia, Pa. 



The Philippine 

 •Journal of Science 



ALVIN J. COX, M.A.. Ph.D., General Editor 



Published by the Bureau of Science 



of the Government of the 



Philippine Islands 



A Periodica] Devoted to the Scientific and Commercial 

 Interests of the Tropics 



The Journal, now in its twelfth volume, is issued in four 

 sections. Each section consists of six niunbers a year, in 

 separately paged and indexed, and is a complete publication 

 in itself. 



YEARLY SUBSCRIPTION RATES 



Section A. Chemical and Geological Sciences and 



the Industries $2.00 



Section B. Tropical Medicine 3.00 



Section C. Botany 2.00 



Section D. General Biology, Ethnology and Anthro- 

 pology 2.00 



The four sections to one subscriber 7.00 



A complete list of the publications of the Philippine Bureau 

 of^Science and a sample copy of the Philippine Journal of 

 Science will be sent upon request. 



Subscriptions and orders for publications should be sent to 



THE BUSINESS MANAGER 



Philippine Journal of Science 

 Bureau of Science MAMLA, P. 1. 



Cooking Class at the 

 South Dakota State College 



are using gas made by 



The "Detroit" 

 Combination Gas Machine 



for supplying gas in Departments of 



Domestic Science 

 Chemistry and Physics 



(Over 30,000 in daily ok) 

 Laboratory work can be done better, 

 quicker and cheaper by using this gas. 

 Ask for descriptive catalog and names 

 of users in your vicinity. 



Detroit Heating & Lighting Co. 



612 Wight St. 



Detroit, Mich. 



