SCIENCE 



A WEEKLY JOURNAL DEVOTEB TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE . 



Fbidat, March 8, 1907 



CONTENTS 

 The American Society of Naturalists: — - 

 Cooperation in Science: Db. C. B. Daven- 

 POBT 361 



The Biological Significance and Control of 

 Sex: Dr. A. F. Blakeslee, Pbofessob 

 Frank E. Liixie, Professor Edmund B. 

 Wilson, Professor R. A. Harper, Pro- 

 fessor Thomas Hunt Morgan 366 



Scientific Books: — 



Lorentz's Ahhandlungen tceher theoretisolie 

 Physik : Dr. A. P. Wills 384 



Scientific Journals and Articles 387 



Societies and Academies: — 



Northeastern Section of the American 

 Chemical Society: Professor Frank H. 

 Thorp. The St. Louis Chemical Society: 

 Dr. C. J. BoRGMETER. The Geological So- 

 ciety of Washington : Ralph Arnold 388 



Discussion and Correspondence: — 



Fakes and the Press: C. A. Gastroliths: 

 Barnum Brown 391 



Special Articles: — 



Reconnaissance of a Recently discovered 

 Quaternary Cave Deposit near Auburn, 

 California : Eustace L. Furlong 392 



Current Notes on Land Forms: — 



Changes of Level in Yakutat Bay: I. B. 

 The Tian Shan Plateau: W. M. D. Merz- 

 bacher's Tian Shan Expedition: W. M. D. 

 The Systematic Study of Mountains: W. 



M. D 394 



Scientific Notes and News 396 



University and Educational News 400 



MSS. intended for publication and books, etc., intended for 

 review should be seut to the Editor of Science, Garrison-on- 



THE AMERICAN SOCIETY OF NATURALISTS 

 COOPERATION IN SCIENCE'- 



As investigators in science a great bur- 

 den of responsibility rests on us. What 

 our sciences shall be in the middle of the 

 century depends on how we build at the 

 opening of the century. History shows 

 this to be so. In the last century embryol- 

 ogy attained its importance because of the 

 activity of its founders, including "Wolff, 

 von Baer, Kowalevsky and Balfour, while 

 modern cytology received its impetus from 

 the labors of such men as Fol, Plemming, 

 Hertwig and Mark. As we look to the 

 work of these men, so the future investiga- 

 tors will look back to us with a true and 

 final judgment and determine our place 

 in the development of our subjects. Well 

 were it for us if this decade, this year and 

 this meeting were memorable for an in- 

 creased devotion to the scientific interests 

 of which we have become the trustees. To 

 advance these interests we should do well 

 to adopt principles which have worked suc- 

 cessfully in other fields of activity. In 

 the modern commercial world one of the 

 most important principles is cooperation. 

 Let us consider the development of coopera- 

 tion in science to learn how it may be ad- 

 vantageously applied further among nat- 

 uralists. 



The ancient Greeks made investigation 

 of nature primarily to illustrate their per- 

 sonal systems of philosophy. This form 

 of investigation, unhappily not yet wholly 

 obsolete, is manifestly incompatible with 



'■ Annual address of president read before Amer- 

 ican Society of Naturalists, December 29, 1906. 



