1913.1 NATURAL SCIENCES OF PHILADELPHIA. 81 



March 18. 

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



Three hundred and two persons present. 



The Chair announced the deaths of the follo^ving members: 

 Lewis W. Steinbach, February 10; Theodore W. Morris, February 



15; Roland G. Curtin, M.D., March 15, 1913. 

 The death of Robert Collett, a correspondent, February, 1913, 



was also announced. 



Mr. Edward H. Thompson made an illustrated communication 

 on the ancient ruins of Yucatan and its modern inhabitants. (No 

 abstract.) 



The Publication Committee reported that papers under the fol- 

 lowing titles had been presented for publication: 



''Some Australian bees," by T. D. A. Cockerell (February 1). 



"Notes on Catostomoid fishes," by Henry W. Fowler (Febru- 

 ary 1). 



"Notes on the fishes of the Chincoteague River," by Henry W. 

 Fowler (February 1). 



"Some type specimens of American Cyprinoid fishes of the genus 

 Rutilus," by Henry W. Fowler (February 1). 



"Notes on some West American Cephalopods," by S. Stillman 

 Berry (February 5). 



"Descriptions of new species of marine shells," by E. G. Vanatta 

 (January 23-February 19). 



"Description and records of South American Orthoptera, ^^•ith 

 the description of a ncAv subspecies from Clarion Island," by J. A. G. 

 Rehn (March 10). 



"A study of metazoan parasites found in the Philadelphia Zo- 

 ological Garden," by Frederick D. Wiedman (March 12). 



"North border relations of the Triassic in Pennsylvania," by 

 Edgar T. Wherry (March 12). 



Colonel W. C. Gorgas, of Panama, was elected a correspondent. 

 The following were ordered to be printed: 



