84 JOURNAL OF THE [July, 



find none. These specimens built their tubes with remarkable 

 rapidity. Large aquatic worms infested all the colonies, writhing 

 amid the bases of the tubes, and continually startling the rotifers 

 to contraction, as could be seen under the microscope. 



Meeting of May 4Th, 1894. 



The President, Mr. Charles S. Shultz, in the chair. 



Sixteen persons present. 



Mr. James C. Gregory was elected a Resident Member of the 

 Society. 



The Recording Secretary read a communication from the 

 Council of the Scientific Alliance requesting the concurrence of 

 the Society in the arrangement of a co-operative course of ten 

 lectures, to be delivered at the American Museum of Natural 

 History or the Cooper Union Building. On motion such concur- 

 rence was granted. 



The Recording Secretary read a communication from the Citi- 

 zens Committee of Brooklyn on Entertainment of the American 

 Association for the Advancement of Science, inviting the Society 

 to attend the receptions, meetings, and excursions of the Associ- 

 ation. On motion the invitation of the Citizens Committee was 

 accepted with thanks. 



Mr. James Walker reported for the Committee on Uniform 

 Cases, Drawers, Trays, and Labels, and the report was accepted 

 and adopted. 



OBJECTS EXHIBITED. 



1. Rare living form of Hydra with rudimentary tentacles : by 

 Henry C. Bennett. 



2. Living Flumatella, developed from statoblast in aquarium : 

 by James Walker. 



3. Living Fredericella from Croton water : by A. D. Balen. 



4. Section of Labradorite : by George E. Ashby. 



From the Society's Cabinet. 



5. Sunstone : aventurine feldspar, internal reddish, fire-like 

 reflection from disseminated crystals of hematite or gothite, 



6. Aventurine, artificial ; glass mixed with filings of copper. 



