Proceedings.] 
82 
[October 20, 
that a large lake in Japan showed a similar absence of molluscs, 
while there were plenty of insects. 
The Custodian showed some examples of Prof. Carl Semper’s 
preparations of different animals, dried and preserved by some 
new process, and which were presented to the Museum by Prof. 
Semper, to whom the thanks of the Society were voted. 
Mr. F. W. Putnam showed, and presented, one of the five 
known specimens of Chologaster Agassizii Putn., from the Mam- 
moth Cave of Kentucky. The same specimen had been shown 
living to the Society some years ago. 
Prof. E. S. Morse presented a large bottle of fine Lingulas 
from Japan. 
General Meeting. October 20 , 1880 . 
The President, Mr. S. H. Scudder, in the chair. Thirty 
persons present. 
Mr. J. A. Allen read a paper on the geographical distribution 
of West Indian birds, with especial reference to those of the 
Bahamas. 
Mr. S. H. Scudder showed some interesting carboniferous cen- 
tipedes in iron-stone nodules from Illinois. Some were of enor- 
mous size, and all presented peculiar features, distinguishing them 
from recent Diplopoda . 1 
Dr. Wm. F. Whitney described the intimate structure of the 
food-reservoir in the milk- weed butterfly. 
1 See Am. Journ. Sc. and Arts, 3, xxi, 182. 
