268 PROCEEDINGS OF [ 1842 , 
From Rev. James Ryder, President of Georgetown College, Oc¬ 
tober 15, 1842. 
From General W. J. Worth, (to Col. Abert,) New York, Octo¬ 
ber 16, 1842: Forwarding a cabinet of arranged shells, and marine 
objects. 
From W. J. Stone, Treasurer, October 17, 1842. 
From George Folsom, New York, October 22, 1842. 
From O. de A. Santangelo, New York, October 17, 1842: 
Transmitting a work on acoustics, by Paolo A. de Luca, published 
at Naples, in 1841, which the Chevalier Martuscelli, Consul General 
of the Two Sicilies, desired him to present to the Institute, and re¬ 
questing that the author may be enrolled among the corresponding 
members. 
From O. Root, Syracuse, New York, October 21, 1842: For¬ 
warding a box of minerals and rocks, illustrating the Onondaga sali¬ 
ferous group, and proposing to send fossils and other specimens, for 
which he asks a return in minerals. 
From Henry Wheatland, Salem, Massachussetts, October 25, 
1842. 
From Dr. Lewis Saynisch, Rlossburg, October 25, 1842: Pro¬ 
posing certain societies and individuals as correspondents, and sending 
prospectus of a work on North America, by Prince Maximilian de 
Wied, whom he proposes as a member. 
From Leonard C. McPhail, Surgeon U. S. Army, Plattsburg, 
New York, October 25, 1842 : Promising to make contributions, &c. 
From W. D. Brackenridge, Washington, October 26, 1842. 
From H. H. Sylvester, Washington, October 28, 1842: Present¬ 
ing books, &c. 
From James Camack, Athens, Georgia, October 28, 1842: 
Suggesting that the Institute should take steps to promote the intro¬ 
duction and cultivation in the Southern States of the olive. 
From James H. Causten, Washington, November 3, 1842: Pre¬ 
senting, in the name of Jacob Snyder, Jr., a bust of the late John 
Vaughan, of Philadelphia. 
From C. S. Todd, E. E. & M. P. U. S., St. Petersburg, com¬ 
municating two letters addressed to him ; one from General TchefF- 
kine, St. Petersburg, J th March, 1842, communicating a series 
of the published works of the Imperial Administration of the Russian 
Mines, for the Institute: the other from Count Cancrine, March 31, 
(April 12,) 1842: presenting to Col. Todd two copies of Mr. 
KupfFer’s work on Russian weights and measures, one of which 
Mr. Todd has presented to the Institute. 
From C. TchefFkine, Major General Russian Mining Engineers, 
St. Petersburg, T 6 ¥ th March, 1842: Presenting the works published 
by the Imperial Administration of the Russian Mines, &c. 
From Franklin Litchfield, U. S. Consul, Puerto Cabello, Octo¬ 
ber 3,1842 : Acknowledging letters and bulletins : asks that Colonel 
