October 6, 1873. 

 Vice-President Albert Todd in the chair. 



Eleven members present. 



A large number of publications received during the summer 

 were laid upon the table, and among them the publications of 

 three nevv^ correspondents, the Astronomical Observatory at Ley- 

 den, Holland ; the Entomological Society of Belgium, Brussels, 

 and the Royal Geological Institute of Hungary, Pesth, Austria. It 

 w^as ordered that the Transactions of the Academy be sent to these 

 societies in exchange. 



Dr. Engelmann presented a specimen of sea-horse (^Hippocam- 

 pus Hudsonicus) from the mouth of the Delaware. It was very 

 similar to that occurring on the shores of the Mediterranean. 



October 20, 1873. 

 Mr. Richard Hayes in the chair. 



Eight members present. 

 . The Corresponding Secretary made a report of correspondence 

 and exchanges received. 



He called attention to a recent disco\ery reported to have been 

 made by Mr. Wm. McAdams of Jerseyville, Ills., in the drift on 

 Otter creek, about four miles south of that place. The drift had 

 a depth of forty feet, and was situated at the base of a perpendicu- 

 lar bluff. Some interesting fossils were found in this drift ; among 

 which were several teeth of an animal related to the Pachyderms, 

 resembling rhinoceros; a tusk, some 12 inches in length, much 

 resembling that of the walrus, a number of large vertebra, and 

 bones -of an extinct horse and of rodents. The locality had been 

 examined by Mr. Worthen, State Geologist, and it was said that 

 some of the newly discovered. fossils had been sent to Dr. Leidy 

 of Philadelphia for examination. 



Mr. Riley exhibited a specimen of the Spreading Adder {Hete- 

 rodon platyrhinos)^ and said it was unusually common, as, indeed, 

 were all kinds of snakes, the present summer, near Kirkwood, 

 St. Louis county, and that he had observed that the coppery color 

 about the head was noticeable only when the animal broadened 



