1881. ] Proceedings of Scientific Societies. | 935 
April 26—Mr. Ryder spoke of the development of the Ameri- . 
can four-spined stickleback. A paper entitled “ List of the fishes 
collected by Mr. W. J. Fisher upon the coasts of Lower Califor- 
nia, 1876-77, with descriptions of new species,” by W. N. Lock- 
ington, was presented for publication. 
ay 3.—Mr. Ryder described the spinning organ of the male 
stickleback. Dr. G. H. Horn made remarks on the classification 
of the Carabide. 
May 10.—Professor H. C. Lewis called attention to a collec- 
tion of beautiful concretions, and considered the mode of forma- 
tion. Mr. Tryon read an extract froma letter by Henry Hemphill 
describing the arrival of a species of Glycimeris fron: Washing- 
ton Territory. Mr. Thomas Meehan spoke of the numerical 
branching of Ampelopsis. Rev. Henry C. McCook made a com- 
munication on the spinning work of spiders, its nomenclature and 
classification, . ; 
May 17.— Papers on Quercus rubra, Q: durandii and Rhus 
colinoides, by S. B. Buckley, were presented for publication. Pro- 
€ssor Heilprin described certain unique specimens of Ammonite 
and Trigonia. Professor Lewis made further remarks on the 
concretions presented at a former meeting. Mr. Edw. Potts ex- 
ibited a specimen of Stapélia illustrating cleistogamous fertili- 
zation. ; 
vay 24.—A paper entitled as follows, was presented for publi- 
Cation: “ Revision of the Palzocrinoide—Part 1. Family Sphe- 
certain European naturalists regarding his genus Ourameeba. Rev. 
Dr. McCook spoke of the stridulating sound made by ants and 
Otts exhibited a beautiful living specimen of Pyrophorus. 
une 14.—A paper entitled “ Notes on the Tertiary Geology of 
the Southern United States,” by Angelo Heilprin, was presented 
for publication. Dr. Horn made some remarks on the entomo- 
gical work of the late Baron Chaudoir, and then spoke of his, 
Dr, Horn’s, arrangement of the Carabide. Mr. Potts defined the 
8enera Heteromeinia and Carterella, and asked for material for 
illustration of the history of fresh-water sponges. Dr. /inders 
Spoke of his observations on the evaporation of moisture from 
_ Vegetation, the soil and water. : : : 
_ June 21~—Mr. Meehan spoke of the sudden appearance of 
