Moore, March 14th, 1874 (91) ; and many postal card receipts 

 for 91, the number recently published. 



Letters of envoy were received from the R. S., Upsal, 

 Kov., 1873 ; the I. Acad., Vienna, Oct. 21st, 1873 ; the R. 

 Library at Mlinich, Dec, 1873 ; the S. P. et H. K., Geneva, 

 Sept. 15th, 1873 ; U. S. Naval Obs., B. F. Sands, Feb. 21st, 

 1874 ; C. P. Obs., St. Petersburg, Jan., 1874. 



A letter requesting a set of Proceedings was received from 

 the Silesian Society for Fatherland Culture, Breslau, March 

 5th, 1873. 



A letter with three photographic pictures of Lidian 

 sculpture was received from Dr. C. H. Stubbs, Wakefield ^ 

 Pa., purchased by the Society. 



" These pictures are taken from the northern face of a rock 

 in the Susquehanna River, near Bald Friar, Md., on which 

 are more than a hundred characters, diagrams, or figures, 

 supposed to have been carved during the stone age. The 

 rock is of quartz, mica, and anthophyllite. Dimensions of 

 figures 12 X 6 and 10 X 6 inches. Photographed in July, 

 1871. Sets in the Maryland Academy of Science, Lancaster 

 Linnsean Society, and Philadelphia Academy of i^atural 

 Sciences." 



Donations for the Library were received from the R. Obs., 

 Turin; Mun. Govt, at Linz ; R. Acad, and Obs., Mlinich; 

 J. Acad., Berlin ; R. S. Melbourne ; Geog. S., Paris ; Revue 

 Pol. ; London ISTature ; Mr. W. J. Henwood, Truro ; the 

 American Acad., Boston ; Franklin Institute ; Acad., l!^. S. ; 

 Am. Chemist ; Medical IsTews ; U. S. K. Obs. ; "Wisconsin 

 Acad. Sciences ; and Minnesota Historical Society. 



The death of Charles Sumner, Senator U. S., at Washing- 

 ton, March 12th, aged 63, was announced hy the Secretary. 



The death of M. C. Quetelet, pere, at Brussels, Monday, 

 Feb. 16th, 1873, aged 77, was announced by the Secretary. 



Prof. Cope communicated some facts revealed by Lieut. 

 Wheeler's last year's explorations on the 100th meridian, in 

 the valley of the great Colorado, and described some new 

 types of living fish belonging to the fresh-water family of 

 Cyprinidse, and characterized by a great development of the 



