REPORT OF THE ANNUAL MEETING 
397 
Samuel Wesley Stratton, Physicist, Bureau of Standards, Washington, D. C. 
Theodore Lyman, Physicist, Harvard University, Cambridge, Mass. 
Edward Lee Thorndike, Psychologist, Columbia University, New York, N. Y. 
William Stewart Halsted, Surgeon, Johns Hopkins Medical School, Baltimore, Md. 
SCIENTIFIC SESSIONS 
Two public lectures on the William Ellery Hale Foundation were 
given on April 16 and 18 by Edwin Grant Conklin, of Princeton University, 
on Methods and Causes of Organic Evolution. 
Four pubhc scientific sessions were held on April 16 and 17 at which the 
following papers were presented: 
J. P. Iddings and E. W. Morley: Report of progress in the study of igneous rocks from 
the East Indies and Islands of the South Pacific. 
W. M. Davis: The Great Barrier Reef of Queensland, Australia (illustrated). 
Charles D. Walcott: Searching for a doubtful geological zone in the Canadian Rockies 
(illustrated). 
Arthur L. Day: The role of the gases in volcanic activity (illustrated). 
W. A. NoYES: A kinetic hypothesis to explain the function of electrons in the chemical 
combination of atoms. 
A. A. MiCHELSON (Draper Medalist, 1917): Some recent work in physics. 
W. B. Cannon: Some considerations regarding the nature of thirst. 
Erwin F. Smith: On Resemblances of Crown Gall to Cancer: A synopsis of work done 
in the United States Department of Agriculture. 
R. J. Anderson and Graham Lusk: The influence of diet upon the heat production 
during mechanical work in the dog. 
Jacques Loeb and J. H. Northrop: What determines the natural duration of life? 
A. G. Mayer: Biographical memoir of William Stimpson. (By title.) 
Benjamin Boss: Biographical Memoir of Lewis Boss. (By title.) 
Simon Flexner: Mechanisms that defend the body from poliomyelitic infection, (a) 
external or extranervous, (b) internal or nervous. 
T. S. GiTHENS and S. J. Meltzer: The difference in the action of antipyretics accord- 
ing to the species of animals subjected to this action, the state of health of the animals, 
the height of their normal temperature and the substance employed. 
Charles B. Davenport: Heredity and juvenile promise of eminent naval men. 
Henry Fairfield Osborn: The causes of the evolution of proportions by mammals. 
W. V. King (introduced by L. O. Howard) : Sporogony of malaria parasites. Photo- 
micrographs of infected anopheles. 
Frank R. Lillie: Sex-determination and sex-dilferentiation in mammals. 
Herbert J. Spinden (introduced by W. H. Holmes): Economic contributions of an- 
cient America. 
Sylvanus G. Morley (introduced by J. W. Fewkes) : The Naya hieroglyphic writing. 
E. E. Barnard: The star in Ophiuchus with great proper motion, total lunar eclipse 
of January 7, 1917; measures of the position of the nucleus of the great nebula of Andromeda 
(illustrated). 
Edwin B. Frost: Recent remarkable changes in a nebula (illustrated). 
The Work of the National Research Council, by George E. Hale, Chairman, 
National Research Council; Charles D. Walcott, Chairman, Military Committee; Robert 
Andrews Millikan, Chairman, Physics Committee; Marston Taylor Bogert, Chair- 
man, Chemistry Committee; Victor Clarence Vaughan, Chairman, Committee on Medi- 
cine and Hygiene; followed by Discussion. 
