96 JOURNAL OF THE [April, 



The President made the following appointments: 



Committee on Admissions: F. W. Devoe, Anthony Woodward, 

 William E. Damon, George F. Kunz, and William Wales. 



Committee on Publications: J. L. Zabriskie, William G. De 

 Witt, Walter H. Mead, John L. Wall, and Charles F. Cox. 



The President delivered his annual address, entitled " The 

 Work of the Microscope," and published in this number of the 

 Journal, p. 87. 



Mr. Stephen Helm, of 417 Putnam Avenue, Brooklyn, delivered 

 the third of his series of addresses, entitled "The Rotifera." 

 This address was illustrated by beautiful enlarged diagrams, and 

 by living objects under microscopes. 



OBJECTS EXHIBITED. 



1. Stephanoceros Eichhornii: by Stephen Helm. 



2. Flosciilaria ornata: by Stephen Helm. 



3. Longitudinal section of head of embryo of Garter Snake, 

 Eutania sirtalis L. : by L Riederer. 



4.' 'I'ransverse section through nose of the same: by L. Rie- 

 derer. 



5. Transverse section through eye of the same: by L. Rie- 

 derer. 



In discussion of the address, Mr. C. Van Brunt stated, as the 

 result of his observations on the desiccation of Rotifera, that 

 when they are dried on the surface of clean glass they are dead 

 and incapable of resuscitation; but if dried among fragments of 

 dirt or vegetable matter they may be revived. He had some pond 

 mud, which had been kept dry, wrapped in paper, for the space 

 of five years. When portions of this were moistened with water 

 the contained Rotifera would revive in two hours' time. 



Mr. Riederer remarked on his exhibits: "This harmless snake,. 

 Eutania sirtalis, belongs to the family Colubridae. It has a mod- 

 erately broad and distinct head, covered with scutes. The 

 dentition is complete. It shows a remarkable variability, which 

 has given opportunity to the formation of quite a number of 

 sub-species. 



" In the following remarks I refer only to such points as can 

 be seen in the transverse or the sagittal sections of the head of 

 the embryo here exhibited. Commencing with the lower jaw. 



