SCIENCE 



Editoeial Committbk : S. Newcomb, Mathematics ; E. S. Woodward, Mechanics ; E. C. Pickeeing, 



Astronomy; T. C. Mendbnhall, Physics; E. H. Thtjeston, Engineering; Iea Eemsen, Chemistry; 



J. Le Conte, Geology; W. M. Davis, Physiography; O. C. Maesh, Paleontology; W. K. 



Beooks, C. Haet Meebiam, Zoology; S. H. Scuddee, Entomology; N. L. Beitton, 



Botany; Hbney F. Osboen, General Biology; H. P. Bowditch, Physiology; 



J. S. Billings, Hygiene ; J. McKeen Cattell, Psychology ; 



Daniel G. Beinton, J. W. Powell, Anthropology. 



Friday, June 25, 1897. 



CONTENTS: 



The American Association for the Advancement of 

 Science 965 



Internal Secretions Considered from a Chetnico-plij/sio- 

 logical Standpoint : E. H. Chittenden 966 



A Case of Primitive Surgery: Feank Hamilton 

 CUSHING 977 



The Influence of Environment upon the Biological 

 Processes of the Various Members of the Colon 

 Group of Bacilli : an Experimental Study : Ade- 

 laide Waed Peckham 981 



Tlie Virginia Colony of Helix Nemoralis : T. D. A. 



COCKEEKLL 985 



Current Notes on Meteorology : — 

 Navigation in Fog ; Hydrographic Cloud Types ; 

 Recent Publications: E. DeC. Waed 986 



Current Notes on Anthropology : — 



The Antiquity of Bornhohn ; The Chaco Tribes; 

 The Celts and their Wanderings : D. 6. BEINTON..988 



Scientific Notes and News 989 



University and Educational News 992 



Discussion and Correspondence : — 



Is the Loess of either Lacrustine or Semi-marine 

 Origin ? J. E. TODD. Monument to the late 

 Bxtys-Ballot : A. Laweence Eotch. Organic 

 Selection: C. Lloyd Mobgan 993 



Seieniiflc Literature : — 



Merrill's Treatise on BocJcs, Eock- Weathering and 

 Soils : J. B. WooDWOBTH. Chapman on Bird 

 Life: Habby C. Obeeholsee 995 



Scientific Journals : — 



Tlie American Journal of Science 998 



Societies and Academies : — 



TJie New York Academy of Sciences : J. F. 

 Kemp. Zoological Club of the University of 

 Chicago 999 



New Books 1000 



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

 for review should be sent to the responsible editor, Prof. J. 

 McKeen Cattell, Garrison-on-Hudson, N. Y. 



TBE A3IEBICAN ASSOCIATION FOR THE AD- 

 VANCEMENT OF SCIENCE. 



The preliminary announcement of tlie 

 forty-sixth meeting, to be held at Detroit, 

 from the 9th to the 14th of August, has 

 been prepared by the Permanent Secretary. 

 The arrangements have in large measure 

 been already announced in this Jotjenal, 

 and we hope to print later the provisional 

 programs of the Sections. The approach- 

 ing meeting has aroused much interest in 

 Detroit and throughout the State. Strong 

 local committees have been appointed and 

 excellent arrangements have been made for 

 the meetings and for the entertainment of 

 members. 



The first meeting of the Council will be 

 at noon, on Saturday, August 7th, at the 

 Hotel Cadillac, which will be the head- 

 quarters of the Association. The ofiSces of 

 the local committee and of the Association, 

 as well as the halls for the general sessions 

 and rooms for all the Sections, will be in 

 the Central High School of the city of De- 

 troit. This new school building is most 

 admirably adapted for the purpose, and has 

 a large number of halls of a suitable size for 

 the meetings of the Sections ; while the 

 Auditorium Hall accommodates over two 

 thousand persons. 



On the morning of Monday, August 9th, 

 the first general session will be held at 10 

 a. m. Owing to the death of Professor 

 Edward D. Cope, the President of the Asso- 



