2S2 July, 1843. 



bred Vegetables, and a supplement. By the Hon. and 

 Rev. William Herbert. London: 1S37. From the Author. 

 Report on the Geology of the State oi Connecticut. By 

 James G. Percival. New Haven, 1S42. From the Au- 

 thor. 



A Monograph of the Fresh-water Univalve Shells of the 

 United States. By S. S. Haldeman. No. 6. January, 1843. 

 From the Author. 



An Address delivered at Laurel Hill Cemetery, on the com- 

 pletion of a Monument erected to the memory of Thomas 

 Godfrey, June 1, 1843. By G. Emerson, M. D. From 

 the Author. 



WRITTEN COMMUNICATIONS. 



Mr. Cassin read a paper intended for publication, entitled 

 " Descriptions of two species, supposed to be new, of the 

 genus Tyrannula, found in Cumberland county, Pennsylva- 

 nia," by William M. & Spencer F. Baird, of Carlisle ; 

 which on motion was referred to a Committee consisting of 

 Messrs. Cassin, Phillips, and Peale. 



A communication from the American Philosophical So- 

 ciety, dated May 19, 1843, returning acknowledgments for 

 Nos. 24 and 25 of the Proceedings of the Academy. 



The Chairman read a note from Dr. J. C. Spencer, of 

 Moorestown, N. J., dated July 2d, containing an extract of a 

 letter from Mr. Edward Harris, who accompanies Mr. Au- 

 dubon to the Rocky Mountains, dated Fort Pierre, thirty-six 

 days from St. Louis, June 1st, stating that the expedition ex- 

 pected to reach the Yellow Stone River in ten or twelve 

 days, and that they had already procured some new birds, 

 and many rare ones, and also some rare quadrupeds. 



A communication from Peter A. Browne, Esq., containing 

 much interesting information respecting the Carica papaya, 

 or Papaw of the West Indies, was read and ordered to be 

 placed in the library of the Academy. 



