Stated Meeting, December 20th, 1872. 
Present, 18 members. 
Vice President, Prof. J. Crusson, in the Chair. 
A letter from the Librarian of the Pennsylvania Ilistori- 
eal Society, dated Philadelphia, Dec. 13, was read , requesting 
the completion of their set of Transactions and Probedines 
A. P.S., which on motion was granted, and the Librarian 
authorized to act accordingly. 
Letters of similar import from the Cornell University and 
State Normal School at Fredonia, were on motion referred 
to the Publication Committee with power to act. 
A letter of envoy was received from Mr. Thomas Bland, 
New York, 42 Pine Street, Dec. 16th, on the part of ay. 
Rawson, of Barbadoes, presenting to thé Society’s Library 
a copy of his report on the population of the island. 
The death of a member, Mr. Thomas Sully, at Philadel- 
phia, on the 6th ult., aged 89 years, was announced by the 
Secretary. 
The death of a member, Dr. René La Roche, at Philadel- 
phia, on the 9th inst., aged 77 years, was announced by Mr. 
Fraley, and on motion, Dr. Carson was appointed to prepare 
an obituary notice of the deceased. 
The death of a member, Dr. Samuel L. Hollingsworth, at 
Philadelphia, on the 14th inst., aged 57 years, Was an- _ 
nounced by Mr. Fraley. 
Mr. Cope desired to place on record an abstract, which he 
communicated orally, of a paper on the Zoological Divisions 
of the Earth, as proposed by Slater, Huxley and others, 
giving his preference to that of Slater, and citing the num- 
bers of species, ete., already described. 
Dr. Wilcox exhibited a Japanese Magie Mirror, the prop- 
erty of E. C. Bittinger, U.S. N., and carrying on its back 
side the inseription “ Elevation—In the dust.” He read two 
letters written by Prof. John Tyndall to Mr. Alex. Johnson, 
in answer to a request for an explanation of the physical 
phenomena of these mirrors, used in the Buddhist cultus. 
Prof. Marsh gave a short account of the more remarkable 
resul's of his explorations in the Rocky Mountains since 
