SCIENCE-ADVERTISEMENTS 



THE 

 PRINCIPLES OF 

 STRATIGRAPHY 



BY 

 AMADEUS W. GRABAU, S.M.. S.D. 



PROFESSOR OF PALEONTOLOGY IN 

 COLUMBIA UNIVERSITY 



?° Should be on the reference ehelf of every col- 

 lege, normal echool, and large high school in the 

 United States."— /oarnaf of Geography. Vol. XIII, 

 Jan. 1915. 



8o»;, IISO paaet. 264 illattration: Priem, fT.BO 



Dueriptiv* Circular Sent apan Re<|ue>t 



K. G. SEILER & CO. 



NEW YORK CITY 



Have You Examined 

 McPherson and Henderson's 



GENERAL CHEMISTRY 



The unusual success of this book is due to ita 

 soundness and leachabilily. Not only are the 

 authors scientific chemists and scientific 

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 the subject of chemistry in a reasonable and 

 interesting way for students tmd teachers. 

 The book is logical, clear, and humEm. A 

 laboratory manual outlining the course is also 

 obtainable. 



viii+572 pages, illustrated, $2.25. 



GINN AND COMPANY 



Boston 

 New York 

 Cfaicaso 

 London 



Atlanta 

 Dallas 

 Columbus 

 San Francisco 



Catalogue of the Hemiptera of 

 America North of Mexico 



ExcepHns the 

 Aphididse, Cocctdae and Aleurodidae 



By Edward P Van Duzee Cloth, $5.50 



A New Dendrometer, by Donald Bruce 10 



Toilc and Antagonistic Effects of Salts on Wine Teast 

 (.Saccaromyces elliptoiJeas) by S. K. Mitra 45 



Belatlcinsblps of Pliocene Mammalian Faunas from 

 the Pacific Coast and Great Basin Prorinces of 

 Nurtb America, by J. 0. Merriam 25 



Nen Fossil Corals from the PacISc Coast, by Jorgen 

 O. Nomland 05 



The University oi California ismiee publications in the following 

 series among others: Agricultural Sciences; American Archae- 

 ology and Ethnology: Botany; l^oonomics; Entomology; vieog- 

 raphy ; Geology ; Mathematics ; Pathology ; Physiology ; Psy- 

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 Bulletin aad Publications of the Lick Observatory. 



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



Nov) Ready 



Full Report of the General Dis- 

 cussion on ** Osmotic 

 Pressure " 



held fay the Faraday Society on May Jst, I9t7 



Price 5s. 6d. net. (73 pages) 



Orders should be sent in at once, as only a limited 

 number of reprints are available, to the SECRE- 

 TARY of the FARADAY SOCIETY, 82, Vic- 

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U>IIVE^SITY OF CALIFORNIA PRESS 



Berkeley, Caliiornia 260 Madison Ave., New'Yoik 



THe Miorosoope 



12th Edition, Published April 10, 1917 



Re-Written and largely Re-lUustrated 



By SIMON HENRY CAGE of Cornell University 



Postpaid $3.00 



COMSTOCK PUBLISHING CO., Ithaca, N. Y. 



Memoirs of the Wistar Institute of Anatomy and 

 Biology. No. 6, 1915 



THE RAT 



Data and Reference Tables. 278 Pages. 89 Tables. 



Biblio raphy. 

 Compiled and Edited by HENRY H. DONALDSON. 



Postpaid $3.00. 



The Wistar Institute 



Philadelphia, Pa. 



