1320 Proceedings of Scientific Soctettes. [December, 
and anterior legs into soft balls with a liquid from its mandibles, 
but it made no nest. The molting of another species of Mygale 
was described. The skin broke along the middle line of the 
found are so from the attacks of enemies. A large black spider 
from San Diego, said to be very venomous, and to be in the h 
of collecting the cocoons of other individuals of the same: 
egs. 
June 14.—A report on the habits and manners of the Engisi 
. G. Gentry in answer to a note 
of enquiry from the Concordville Farmers’ Club. . Pre 
ably with the Laramie beds. On stratigraphical evid 
beds seemed to belong to the horizon of the Green Ri 
but the remains of fishes are not closely allied to those 10 
the latter beds. A genus named by the speaker Plioplare 
quite closely related to forms now existing. There was 
dence that the land fauna of the Laramie beds was © 
and the marine fauna Tertiary. The formation com 
Cernaysienne fauna in France was believed to be nearest 1n 
logical age to the Laramie. As the age of the Americal © 
tion was first determined, the name should be appl 
French deposits. Professor Heilprin maintained the f 
of the Laramie. The beds of Maryland and Eastern 
contain forms near to those of the lowest English and © 
fi 
New York were of the same horizon as the ie 
Pennsylvania, so that it would be useless to sink W 
tervening tract. Investigations extended into Living’ 
