262 TRANS. OF THE ACAD. OP SCIENCE. 



February 6, 18C5. 

 The President, Dr. Engelmann, in the chair. 



Eight members present. 



A letter was read from Dr. Martin Mayer, Leavenworth, 

 Kansas, ordering a copy of the Transactions; and from the 

 Royal Dublin Society, (Dublin, Jan. 11, 1865,) acknowledg- 

 ing receipt of Transactions sent. 



The Corresponding Secretary laid upon the table the Am. 

 Jour, of Science & Art, No. 115, Jan., 1865, New Haven; 

 Proc of the Essex Institute, Vol. IV., No. 4, Salem, 1864, 

 from the Institute; and the North Amer. Gaurinae, by Joseph 

 Tremble Rothrock, B.S., from the Author. 



Dr. B. F. Shumard presented for publication a paper enti- 

 tled "A Catalogue of the North American Palaeozoic Echino- 

 dermata, together with a Bibliography of the same." Refer- 

 red to the Committee on Publication. 



Dr. A. Wislizenus read a paper, entitled "Thoughts on 

 Matter and Force," which he offered for publication in the 

 Transactions. Referred to the Committee on Publication. 



Wm. S. Dyer, M.D., of St. Louis, was elected an Associate 

 Member. 



February 20, 1865. 

 The President, Dr. Engelmann - , in the chair. 



Five members present. 



Letters were read from William Kahler, Wilmington, Ills., 

 Jan., 1865, concerning a mathematical problem ; from the 

 Smithsonian Institution, Washington, Feb. 3, 1865, announ- 

 cing packages transmitted from Europe; and from L'Acade- 

 mie Royale Suedoise des Sciences, Stockholm, Nov. 15, 

 1864; Naturf Gesellschaft, Freiburg, LB., Oct. 20, 1864; 

 Naturf. Gesellschaft des Osterlandes, Altenburg, July l!(i, '64, 

 — severally acknowledging the receipt of the Transactions 

 of the Academy, and sending publications in exchange. 



Publications were laid upon the table as follows: 



The Dublin Quar. Journal of Science, No. XVI., Oct., 1864— /row the 

 Editor. Mittheil. aus dem Osterlande, Band XVI., Heft 4, Altenberg, 

 1864 — from the Society. Naturf. Gesellschaft zu I'reihenj, I. B. : Berichte, 

 Band III., Heft 2., 18G4— from the Society. Naturf. Verein fur Saehsen 

 U. Thuringen in Halle: Zeitschrift, Jahrg. 1863, Heft 7-12; Jahrg. L864, 

 Band XXI II., Berlin— -from the Societies. Wiirzburger Med. Zeitschrift, 

 Band V., Heft 2-3, 1864— -from the Society. Museum Carolino-Augusteum; 

 Jahresbericht 1863, Salzburg — -from the Institution. L'Acad. Royale Sue- 

 doise dee Sciences: Handlingar, Band [V.,Haftet2, 1862; Oversigt, Bd. 

 1868, No. 1-10; Ledamoter 1864, Stockholm — from the Royal Acad, my. 



