SCIENCE- ADVERTISEMENTS 



ISIS 



hilcrnational Rcviciv devoted to the 



History of Science and Civilization 



Edited by GEORGE SARTON, D.Sc. 



Associate of the Carnegie Institution 

 24 Agassiz Street, Cambridge, Mass. 



The chief feature of Isis is a Critical Bib- 

 liography of the History and Philosophy of 

 Science and of the History of Civilization. 

 The three iirst volumes (1882 pages) con- 

 tain about 5,620 bibliographic notes, 312 re- 

 views and 43 longer papers. Isis is the main 

 center of information on the History and 

 Philosophy of Science, and the organ of the 

 New Humanism. 2 or 3 parts complete a 

 volume within 12 to 18 months. 



The 1st part (220 p.) of Vol. IV has ap- 

 peared. Each volume costs 50 Belgian 

 francs (ed. de lu.xe, from vol. II on, 100 

 francs) 



Publisher: WEISSENBRUCH 

 49 rue du Poincon Bruxelles, Belgium 



The Optical Society of America announces the 

 addition to its Journal of a section on Scientific 

 Instruments, beginning with the March, 1922, num- 

 ber. The Journal will henceforth be known as 

 the 



JOURNAL OF THE OPTICAL SOCIETY 



OF AMERICA and 



REVIEW OF SCIENTIFIC INSTRUMENTS 



This arrangement has been eflfected upon repre- 

 sentations from the National Research Council 

 and in cooperation with that body and with the 

 Association of Scientific Apparatus Makers of the 

 United States of America. 



The enlarged Journal will be issued monthly and 

 will contain, in addition to articles on theoretical, 

 experimental and applied optics, original articles 

 and- abstracts on scientific instruments and ap- 

 paratus of all kinds : electrical, mechanical, 

 thermal, etc., as well as optical, for research, in- 

 struction, and industrial work in physics, chem- 

 istry, biology, and other sciences. Articles for 

 publication are solicited. 



The subscription price for 1922 is five dollars. 



Subscriptions should be sent to : 



F. K. RICHTMYER, Business Manager, 

 Cornell University, Ithaca, N. Y. 



Complete set of back numbers of the Journ-al 

 of tlie Optical Society, Vols. I-V, $16.00. 



The Sarah BerUner 



Research Fellowship 



for Women 



A fellowship of the value of one thousand 

 dollars is offered annually, available for 

 study and research in physics, chemistry 

 or biology. Applicants must already hold 

 the degree of doctor of philosophy or be 

 similarly equipped for the work of further 

 research. Applications must be received 

 by February 1, 1922. Further informa 

 tion may be obtained from the chairman 

 of the committee. 



PROFESSOR MALTBY 



Barnard College 



INew York City 



Naturalists' Supplies 



We carry in stock for prompt delivery 



1. Collecting Utensils. 



II. Breeding Apparatus and Cages for 

 Living Animals. 



III. Preparing and Preserving Utensils. 



IV. Cabinets and Insect Cases. 



V. Magnifiers, Microscopes and Acces- 

 sories. 

 VI. Botanists' Supplies. 



Vll. Explorers" and Collectors' Camp 

 Outfits. 

 Vlll. Miscellaneous Naturalists' Supplies. 

 IX. Oologists' Supplies. 

 X. Aquaria. 



XI. Books and Publications. 

 XII. Chemicals. 



K-S Museum Cabinets of Glass and Metal 



New Illustrated Biological Catalogue will 



be sent free of charge upon application. 



TheKny-SGheerer Corporation 



Dept. of Natural Science, 56 West 23rd St. 

 G. Lagai, Ph.D. New York City 



