189I.] NEW-YORK MICROSCOPICAL SOCIETY. 119 



PROCEEDINGS. 

 Meeting of April 3D, 1891. 



The President, Mr. P. H. Dudley, in the chair. 



Twenty-one persons present, 



Mr. A. Woodward, chairman of the Committee on Annual 

 Reception, reported the action of the Committee, and the favor- 

 able response of the members of the Society, indicating the pros- 

 pects of a successful Reception. 



On motion it was resolved : That the Committee on -Annual 

 Reception invite dealers to exhibit instruments and apparatus at 

 said Reception. 



Mr. Stephen Helm, F.R.M.S., delivered the fourth and last of 

 his series of addresses on the lower forms of animal life, entitled 

 " Polyzoa and Hydrozoa." This address was illustrated by an 

 extended succession of beautiful, enlarged diagrams, prepared 

 by Mr. Helm, and also by objects exhibited under microscopes 

 as stated below. 



OBJECTS exhibited. 



1. Hydra viridis : by Stephen Helm. 



2. Statoblasts of Pectinatella inagtiifica : by Stephen Helm. 



3. Plumatella repens : by Stephen Helm. 



4. Biigula avicularia with *' bird's-head processes " : by Edw. 

 G. Love. 



5. Bicellaria tuba : by Edw. G. Love. 



On motion the thanks of the Society were tendered Mr. Helm 

 for his series of interesting addresses. 



Annual Reception. 



The Annual Reception of the Society was held at the Ameri- 

 can Museum of Natural History, Central Park, New York City, 

 on the evening of April 17th, 1891. 



The exhibits were displayed in the large Hall of the first floor 

 of the Museum. 



In the large new Lecture Room, adjoining, three successive 

 exhibitions were given as follows : At 8 p.m., Exhibition of Lan- 

 tern Slides of Diatoms, by Charles F. Cox; at 9 p.m.. Ex- 



