192 General Notes. 
Nov. 22, 1887.—Dr. H. C. McCook described Cyrtophora bifurca, 
a new orb-weaving spider from Florida. 
Dec. 6, 1887.—Mr. Meehan called attention to the prolific 
growth of interaxial tubers obtained from Dioscorea eburnea, a 
Chinese plant. 
Dec. 13, 1887.—Mr. W. H. Dall mentioned the finding of the 
ana Leucochloridum paradoxum in a Western species of 
uccin 
Jan. 24, 1888.—Professor W. P. Wilson stated that the appa- 
ratus for catching and assimilating insect food is Sanpa more effi- 
cient in Sarracenia variolaris than in C. purpu 
Dr. Horn exhibited a collection of May badar comprehending 
79 out of the 81 species known north of Mexico. 
Professor J. A. Ryder stated that the manner of cleavage of 
the yolk in the eggs of lampreys and Batrachia differs from that 
which obtains in osseous fishes, birds and reptiles. 
BIOLOGICAL SOCIETY OF WASHINGTON, 117th Regular Meeting. 
gns 17, 1887.— The following communications were presented 
<0. R Hopkins, “Notes Relative to the Sense of Smell 
n Buzzards;” Dr. a Curtice, “The Timber Line of Pike’s 
Peak; ;” Mr. Charles . Walcott, exhibited a section of a fos- 
sil Endoceras over ely. feet in length, with remarks on the same; 
Dr. Leonhard Stejneger, “On the Extinction of the Great Northern 
Cow;” Dr. C. Hart Merriam, “Description of a New Mouse 
from the Great Plains.” 
118th Regular Meeting.— Dec. 31st, 1887—The following 
communications were read:—Mr. W. J. McGee, “The Over- 
lapping Habitats of Sturnella magna, and S. neglecta in Iowa;” 
Dr. C. Hart Merriam, “Description of a new Field Mouse from 
Western Dakota;” Mr, W. B. Barrows, “The Shape of the Bill 
in Snail-eating Birds; uf Mr, H. Justin Roddy, “Feeding Habits 
of some Young Raptores.” 
