1911.] natural sciences of philadelphia. 533 



November 7. 

 Mr. Charles Morris in the Chair. 



Twenty persons present. 



The reception of the following papers was reported: 



"A Monograph of the Procyonidae, " by R. W. Shufeldt, M.D. 

 (October 17). 



"The Formation of Ripple-marks, Tracks, and Trails," by Amos 

 P. Brown (October 25). 



The death of Ernest Andre, a correspondent, June 14, was an- 

 nounced. 



In announcing the death on October 31 of the Rev. Henry C. 

 McCook, D.D., the Recording Secretary stated that he had been 

 elected a member August 31, 1875, and had served as Vice-President 

 from May, 1882, to December, 1900. 



He was earnest and efficient as the Chairman of the Committee 

 on Lectures and Instruction from 1880 to 1887. During the period 

 of his active association he was always energetic in the enforcement 

 of what he regarded as best for the welfare of the Academy. 



His work on the natural history of ants and spiders will give him 

 a permanent place in the history of Science in America. 



A more extended notice of Dr. McCook's scientific work will be 

 published by the Entomological Section of the Academy. 



John W. Harshberger, Ph.D., made a communication on the 

 vegetation of extreme southern Florida. (No abstract.) 



Captain Hugh L. Willoughby, in continuation, spoke of the 

 physiography and primitive vegetation of Lake Ochichobee and the 

 Everglades. 



November 21. 

 The President, Samuel G. Dixon, M.D., LL.D., in the Chair. 



Thirty-two persons present. 



The reception of a paper entitled "Notes on Salmonoid and related 

 Fishes," by Henry W. Fowler, was reported. 



The death of Malcolm Lloyd, a member, September 27, was 

 announced. 



Mr. Charles Morris made a communication on the extinction 

 of the giant reptiles. (No abstract.) 



The following were ordered to be printed: 



