SCIENCE 



A WEEKLY JOURNAL -DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE 



Friday, November 15, 1907 



CONTENTS 



Facts limiting the Theory of Heredity: Pro- 

 fessor William Bateson 649 



Scientific Books: — 



Resultats du Voyage du S. Y. Belgica; The 

 National Antarctic Expedition: Dr. W. H. 

 Dall. Uazen on Clean Water and how to 

 get it: Professor C.-E. A. Winslow. Hel- 

 mert's Die Ausgleichiingsrechnung : De. 

 George H. Ling ! 660 



Scientific Journals and Articles 664 



Societies and Academies: — • 



The Torrey Botanical Clut : C. Stuart 

 Gagee 665 



Discussion and Correspondence: — 



Some Observations on Museum Administra- 

 tion: Dr. Frank C. Baker. The Publica- 

 tion of Agricultural Research: Professoe 

 F. L. Steyens. Holothurian Names: Dr. 

 F. A. Bathee 666 



Special Articles: — 



A Suggestion for a New Unit of Energy: 

 Dr. Henry Prentiss Aemsby. The Flying 

 Machine : Professor Gael Baeijs 670 



Abstracts for Evolutionists: — 



Antarctic Aptera; Unionidce of the Laramie 

 Clays; An Ancient Type of Tree; Hybrid 

 Humming Birds; Crested Titmouse Hy- 

 brids; African Isopods: T. D. A. C 673 



Botanical Notes:— 



Sundry Botanical Papers; Another Tree 

 Book : Professor Charles E. Bessey .... 675 



Appointments at TuloMe University 677 



Archeological Work in Arizona: De. Edgar 

 L. Hewett 679 



British Museum Model of Eurypterus 679 



The Research Laboratory of Physical Chem- 

 istry of the Massachusetts Institute of 

 Technology 680 



The Chicago Meeting of the American Asso- 

 ciation for the Advancement of Science . . . 680 



Scientific Notes and News 684 



University and Educational News 688 



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

 review should be seut to the Editor of Sciesce, Garrison-OD- 

 Iludson, N. Y. 



FACTS LIMITING THE THEORY OF 

 HEREDITY ' 



My first duty is to acknowledge tlie 

 honor done me by the suggestion that I 

 should deliver the address in this section. 

 I need not say that I very highly appre- 

 ciate the distinction thus conferred. 



The fact that a heredity section has been 

 constituted is surely a matter for congratu- 

 lation. It is a sign that the study of 

 zoology is passing into a maturer stage. 

 For the past half century zoologists have 

 been chiefly occupied with the accumula- 

 tion of morphological facts of structure 

 and development. The perfection of 

 microscopical methods had revealed re- 

 gions in which knowledge could be readily 

 advanced by simple means. We became, 

 therefore, students of Ccelenterata, insects, 

 Vertebrata,or whatever it might be, accord- 

 ing as fancy or opportunity had specially 

 attracted us to one or other of these 

 groups. 



Such work was interim work. It was 

 making up arrears. This task is now 

 practically accomplished. Almost all that 

 can be seen by these simple means has been 

 seen. One more phase is over. The divi- 

 sion of our subject matter according to 

 the groups of the animal kingdom is no 

 longer adequate. 



We are trying for fresh points of attack. 

 Our forces are disposing themselves in new 

 formations, with fresh centers and a new 

 front. In the organization of the present 

 congress the change has been recognized, 

 ' Address delivered at the International Zoolog- 

 ical Congress, before the Section of Cytology and 

 Heredity, August 23, 1907. 



