1894.] NEW-YORK MICROSCOPICAL SOCIETY. 77 



OBJECTS EXHIBITED. 



1. Section of chalcedony : by J. D. Hyatt. 



2. Male and female Copepods from Wood^s Holl, Mass. : by 

 H. W. Calef. 



3. Young of Limulns from Cold Spring Harbor, N. Y. : by 

 Mrs. M. O. Le Brun. 



4. Hydroid form of Obelia coiiimisuralis from Cold Spring 

 Harbor, N. Y. : by Mrs. M. O. Le Brun. 



5. Sertularian from Cold Spring Harbor, N. Y. : by Mrs, M. 

 0. Le Brun. 



6. Globigerina from "Challenger Expedition'' soundings, 

 1,450 fathoms : by James Walker. 



7. Male and female forms of pond life from Crotona Park, 

 N. Y. : by F. W. Leggett. 



Annual Exhibition, April 17TH, 1894. 



The Fifteenth Annual Exhibition of the Society was held at 

 the American Museum of Natural History, Central Park, New 

 York City, on the evening of April 17th, 1894. 



Objects and apparatus, as noted in the programme bslow, were 

 displayed in the halls of the second floor of the Museum. At 9 

 o'clock Dr. Edw. G. Love, in the main lecture room, gave an ex- 

 planation of numerous projections of photomicrographs upon 

 the screen. It was estimated that about two thousand persons 

 were present at the exhibition. 



EXHIBITS. 



1. Volvox Globator, living ; these hollow vegetable spheres 

 seen in active rotary motion, caused by innumerable cilia 

 arranged upon the surface of the globe : by Charles S.. 

 Shultz. 



2. Fossil Coal, section from Bowling-on-the-Clyde, Scotland. 

 From its appearance it is undoubtedly a portion of a Stigmaria 

 plant retaining its original cell structure : by Charles S. 

 Shultz. 



3. Arranged Group of Diatoms forming Pleurosigma Rosette, 

 130 forms : by E. A. Schultze. 



4. Tongue, Odontophore, of Snail : by J. D. Hyatt. 



