REPORT ON THE AUTUMN MEETING 
57 
the custody of the Treasurer, and to compare the stated income of 
such securities with the receipts of record; to examine all vouchers covering 
disbursements for the account of the Academy and the authority therefor, 
and to compare them with the Treasurer's record for expenditures; to examine 
and verify the account of the Academy. The auditing committee may employ 
the services of an expert accountant to assist in the examination of the books 
of the Treasurer. 
The recommendation of the Committee on the Henry Draper Fund to 
award the Draper medal in 1915 to Prof. Joel Stebbins, of the Universiiy of 
Illinois, in recognition of his work on Application of the Selenium Cell to 
Stellar Photometry, was approved. 
A resolution of the Council providing for a special business meeting and a 
special scientific meeting of the Academy on April 19, 1915, to be followed 
by the stated meeting on Tuesday and Wednesday, April 20 and 21, 1914, 
as required by the constitution, was unanimously adopted. 
It was voted that the thanks of the National Academy of Sciences be given 
to the Chairman, Mr. E. H. Moore, and to the members of the local committee 
for their most successful arrangements for the Autumn Meeting held in 
Chicago, December 7, 8, 9, 1914. 
It was further voted that the thanks of the Academy be extended to Presi- 
dent Judson, to the University of Chicago, to the Quadrangle Club and to 
the Chaos Club for their aid in arranging the social features which contributed 
so much to the enjoyment of the Autumn Meeting. 
SCIENTIFIC SESSIONS 
Two pubhc lectures on the William Ellery Hale Foundation were given 
on December 7 and 8 by William Wallace Campbell, Director of the Lick 
Observatory, on Stellar Evolution and the Formation of the Earth. 
Four public scientific sessions were held on December 7, 8, and 9, at which 
the following papers were presented: 
1. W. W. Campbell: On the radial velocities of nebulae. 
2. Heber D. Curtis (introduced by W. W. Campbell): Preliminary note on nebular 
proper motions. 
3. R. A. MiLLiKAN (introduced by A. A. Michelson): The coefficient of slip in gases 
and its relation to the nature of the impact between a molecule of a gas and the sur- 
face of a solid or liquid. 
4. W. D. Harkins and E. C. Humphrey (introduced by Julius Stieglitz): The capil- 
lary and electrical forces at the interface between two liquids. 
5. Herbert N. McCoy (introduced by Julius Stieglitz): The solubilities of radium 
compounds as indicated by the solubilities of analogous compounds of calcium, strontium, 
and barium. 
6. L. A. Bauer (introduced by George E. Hale) : Present status of the general mag- 
netic survey of the globe. 
7. Charles J. Chamberlain (introduced by J. M. Coulter): A phylogenetic study 
of cycads. 
8. C. M. Child (introduced by J. M. Coulter) : A dynamic conception of the organic 
individual. 
