X MINUTES. 



Secretaries Brown and Keller acted as tellers of the election, 

 and the Society proceeded to ballot for members. 



The Secretaries subsequently reported that the following nomi- 

 nees had been elected to membership : 



Residents of tJic United States. 



William Wallace Atterbury, A.M., Radnor, Pa. 

 Maxime Bocher, A.B., Ph.D., Cambridge, Mass. 

 Percy Williams Bridgman, Ph.D., Cambridge, Mass. 

 James Mason Crafts, S.B., LL.D., Boston, Mass. 

 Henry Piatt Cushing, Cleveland, Ohio. 

 Edward Murray East, M.S., Ph.D., Boston, Mass. 

 Frank Rattray Lillie, Ph.D., Chicago, 111. 

 William E. Lingelbach, A.B., Ph.D., Philadelphia. 

 Daniel Trembly MacDougal, A.M., Ph.D., Tucson, Ariz. 

 Charles Frederick Marvin, M.E., Washington, D. C. 

 Lafayette Benedict Mendel, A.B., Ph.D., Sc.D., New Haven, 

 Conn. 



Forest Ray Moulton, Ph.D., Chicago, III. 

 Eli Kirk Price, A.B., LL.B., Philadelphia. 

 Erwin Frink Smith, Sc.D., Washington, D. C. 

 William Morton Wheeler, Ph.D., Boston, Mass. 



Foreign Residents. 



Frank Dawson Adams, D.Sc, Ph.D., F.R.S., Montreal. 

 Wilhelm L. Johannsen, M.D., Ph.D., Copenhagen. 

 Joannes Diderik van der Waals, Ph.D., Amsterdam. 



Morning Session — lo o'clock. 



Edward C. Pickering, D.Sc, LL.D., F.R.S., Vice-President, in 



the Chair. 

 The following papers were read : 

 "Age Cycles and Other Periodicities in Organisms," by C. M. 

 Child, Ph.D., Professor of Zoolog}^, University of Chicago. 

 (Introduced by Prof. C. E. McClung.) 



