58 JOURNAL OF THE [January, 



"The nest here exhibited was found in February, 1884, with 

 the occupant dead therein, it having died in the act of moulting. 

 This nest is composed of an oval cocoon-like web, flat and very 

 delicate on the under side, convex and firmer on the upper side, 

 and strengthened all around the margin by glued fragments of 

 sawdust. 



" In August, 1884, two house-flies were observed alighting at 

 a dish of fly-poison, each Ry having a living pseudo-scorpion 

 clinging to a middle leg with a firm grip of the palpus. The 

 flies made exertion to brush off their antagonists, but when the 

 flies rested the scorpions would take a fresh and firmer hold." 



Mr. Hyatt stated that it was unusual to find cinnabar in 

 quartz. In his section, here exhibited, there was an appearance 

 as of free quicksilver. Mr. Hyatt also further described the 

 construction and operation of his substage condenser as noted 

 at the last meeting, and with which he secured the dark field 

 illumination for his exhibit of Foraminifera. 



This led to a discussion on condensers, which was partici- 

 pated in by Mr. C. S. Shultz and others. 



Mr. F. W. Leggett announced that he had kept for two weeks 

 fiddler crabs in fresh water, where the crabs had been accident- 

 ally introduced, and that the creatures appeared to be thriving. 

 This opened a discussion, participated in by Dr. Hoffmann and 

 Messrs. L. Riederer and A. Woodward. 



Meeting of November 2ist, 1890. 



The Vice-President, Mr. J. D. Hyatt, in the chair. 



Twenty-four persons present. 



The chair appointed the following committee on Nomination 

 of Officers : Messrs. F. W. Devoe, William G. De Witt and 

 Walter H. Mead. 



Mr. William Beutenmiiller read by title a paper, entitled 

 " Bibliographical Catalogue of the described tranformations of 

 North American Coleoptera." This Paper is published in the 

 present number of the Journal, p. i. 



objects exhibited. 



1. Avixba proteus : by George C. F. Haas. 



2. .Euglena viridis : by J. D. Hyatt. 



3. Epistylis sp., from Belostoma : by J. L. Zabriskie. 



