1298 Proceedings of Scientific Societies. [Dec., 1884. 
May 16.—Prof. Cope described the rich collections of vertebrate 
fossils in the museums of the City of Mexico. Some species are 
yet undescribed. 
June 20.—Professor Cope read a paper upon the extinct Mam- 
malia of the Valley of Mexico. 
July 18.—Dr. Gill’s notes on the Stromateidz were presented 
for publication, and Professor Cope presented a paper by W. G. 
Stevenson on a man-eating shark caught off Nantucket. 
_ August 15.—Professor Cope presented a paper upon “The 
structure of the feet in the extinct Artiodactyla of North Amer- 
ica,” also a “ Fifth contribution to the knowledge of the fauna 
of the Permian formation of Texas.” 
ILLINOIS State Natura. History Sociery.—tThe field and 
annual meeting was held at Peoria, July 7th. It was intended to 
combine for this occasion the features of the field and an- 
nual meetings, heretofore held separately, the programme of 
papers and discussions being varied with short excursions for 
collection and field observation in the vicinity. 
The following papers were read: Illinois forests and forestry, 
by T. J. Burrill; New developments in the Streater coal field, by 
+ Edwin Evans; Mastodon and other remains of the loess and 
` drift clays, and their relation to the climatology and geology 
of the deposits, by William McAdams; Explorations of Indian 
mounds in Dakota, by William McAdams; Ancient pictographic 
records on the rocks in the vicinity of the Missouri river, by 
William McAdams; Experiments with a living copper-head ser- 
pent, by William McAdams; Notes on marine alge, by 4.4 
Seymour ; Recent investigations in relation to the rise of sap m č 
trees, with experiment, by A. B. Seymour; Some corn hog ia 
A j 
d. 
At an evening session a finely illustrated description oO! 
development of the teeth in man and other vertebrates was g! 
by Dr. Will X. Suddath, of Bloomington, highly interesting 
those present, and the president-elect of the society, MT 
Adana, gave an address on the fossil remains of maa Chay 
of the Mississippi river, passing around numerous fossi! 9p, 
mens of the keth and base of land animals lately found by him 
imbedded in nodules in this formation.—S. A. Forbes, Secr 
