626 



SCIENCE. 



[N. S. Vol. XIV. No. 356. 



making this summer. The main results so 

 far are that he has shown, by the aid of an 

 elaborate series of measurements, that the 

 numerous species of lo run into each other 

 in a very complete way, and that the dif- 

 ferences between the shells are associated 

 with their position up or down stream. 

 Nevertheless, there is in most streams a 

 more or less marked discontinuity between 

 the smooth, globular, up-stream shells and 

 the spiny, elongated down-stream shells. 

 The meaning of the discontinuity (which 

 justifies, in a way, a division of the shells 

 into two species) is still not perfectly clear. 

 To test certain hypotheses in respect to 

 this discontinuity, Mr. Adams has returned 

 to the field this summer. This piece of 

 work is, we believe, the largest and most 

 thoroughgoing quantitative study of the 

 variation of a species in nature that has 

 yet been reported upon. 



The committee request the council to 

 grant it one hundred dollars additional, to 

 aid Mr. Adanas in this his final summer's 

 work on this topic. 



The committee is glad to report an in- 

 creasing interest in the quantitative study 

 of variation, and especially the establish- 

 ment by Professors Pearson and Weldon of 

 a new journal, Biometrica, devoted to the 

 results of such study. 



Respectfully submitted, 

 F. Boas, 

 Chas. S. Minot, 

 J. McK. Cattell, 

 Chas. B. Davenport, 



C. H. ElGENMANN. 



The following resolution was also passed 

 requesting an appropriation for the Con- 

 cilium Bibliographicum from the funds of 

 the general society : 



In view of the very limited sum at the 

 command of the Committee on Grants, and 

 recognizing also the fact that this money 

 has hitherto been devoted only to the en- 

 couragement of research, this Section would 



recall its request that a grant be made from 

 these funds to the Concilium Bibliographi- 

 cum. 



As an important aid to research, already 

 firmly established, of great assistance to in- 

 vestigators and capable of development so 

 as to serve a wider usefulness, this Section 

 regards the Concilium Bibliographicum as 

 particularly deserving of support and en- 

 couragement, and to the end that such 

 financial assistance as is necessarj^ may be 

 given, requests that a special appropriation 

 of $50 from the general funds of the Asso- 

 ciation be made for this purpose, and placed 

 at the disposal of an advisory committee of 

 three, consisting of President Minot, to- 

 gether with two other members or fellows 

 appointed by him. 



On Monday, at 3 p. m.,the Section listened 

 to the address of Vice President Davenport 

 on ' The Zoology of the Twentieth Century,' 

 which, in the absence of Mr. Davenport, 

 was read by the secretary. 



On Wednesday morning the Section ad- 

 journed to hear the address of Vice-Presi- 

 dent Jordan before Section G on ' Political 

 and Social Conditions in the Hawaiian 

 Islands.' 



At a meeting of the General Committee 

 on Thursday evening, Professor C. C. Nut- 

 ting, of the University of Iowa, Iowa City, 

 was elected vice-president and chairman of 

 the Section for 1902, and Dr. Charles W. 

 Stiles of the Bureau of Animal Industry, 

 Washington, D. C, was elected secretary 

 for 1902. 



The following papers were presented be- 

 fore the Section and, so far as given by the 

 authors, the abstracts for each are ap- 

 pended. 



1. ' The Fish-Fauna of Japan, with Ob- 

 servations on the Distribution of Fishes ' : 

 David Starr Jordan, President of Stan- 

 ford University. Published in Science for 

 October 11. 



2. ' On the Morphology of the Pineal 



