1889.] NEW-YORK MICROSCOPICAL SOCIETY. 115 



On motion it was Resolved : That the subject of the Braman 

 Microscope be referred to the Board of Managers, with power 

 to have engraved upon the Microscope words commemorative 

 of its donation to the Society by. Benjamin Braman ; and also 

 with power to acknowledge, in such manner as they may deem 

 best, to the proper persons, the receipt of the Microscope by the 

 Society. 



Mr. J. D. Hyatt gave notice of the meeting of the American 

 Society of Microscopists. 



OBJECTS EXHIBITED. 



1. Liostephania rotula : by E. A. Schultze. 



2. Pleuro-staurum fulmen : by E. A. Schultze. 

 Nos. I and 2 being Diatoms from Sorata, Bolivia. 



3. Plumatella repens, one week old, reared in an aquarium : by 

 Stephen Helm, 417 Putnam Ave., Brooklyn, N. Y. 



4. Melicerta ringens, branched : by Stephen Helm. 



5. A crustacean parasite of fish, Argulus sp., prepared by Mr. 

 Norman N. Mason, Providence, R. I.: by J. L. Zabriskie. 



6. Section of Flint from Tennessee, containing the body of a 

 silicious sponge, with the structure perfectly preserved : by J. 

 D. Hyatt. 



7. Larva of Corethi-a plumicornis : by F. W. Leggett. 



8. Section of Wing of Butterfly, showing structure of the 

 scales and their attachment : by L. Riederer. 



THE crustacean PARASITE, ARGULUS. 



The Corresponding Secretary presented the following com- 

 munication upon his exhibit — the Crustacean Parasite, Argulus, 

 sp., prepared and loaned for the occassion by Mr. Norman N. 

 Mason, of Providence, R. I.: — 



" Huxley, in his * Anatomy of the Invertebrated Animals,' 

 says in effect that Argulus is a parasite cjommon upon the 

 Stickleback, and is of very curious modification. It is extremely 

 flattened, has a styliform weapon lying in a sheath in front of 

 the mouth, and six pairs of appendages, the anterior pair being 

 metamorphosed into suckers. 



" Mr. Mason says of this beautifully prepared specimen, that 

 it was captured swimming near the shore in Cunliff's Pond, in 

 the City of Providence. And that it would adhere to the inner 

 surface of a glass beaker, by means of the suckers on its ventral 



