99 



The Journal of the Royal Geographical Society of London. Vol- 

 IX. Parts first and second. London, 1839. — From the Society. 



Experimental Researches in Electricity. Eleventh, Twelfth, Thir- 

 teenth and Fourteenth series. By Michael Farady, Esq., D.C.L. 

 London, 1838. — From the Author. 



The History of the Navy of the United States of America. By J. 

 Fenimore Cooper. Two Vols. Philadelphia, 1839. — From 

 the Author. 



A Memoir of the Life and Character of Philip Syng Physick, M.D. 

 By J. Randolph, M. D. Philadelphia, 1839.— From the Author. 



Experimental and Theoretical Researches in Electricity. First 

 Memoir. By William Sturgeon, Esq. London, 1839. — From 

 the Author. 



Facts and Inquiries respecting the source of Epidemic. By T. 

 Forster, M. B. London, 1832 — From the Author. 



Observations on the Brumal Retreat of the Swallow. By Thomas 

 Forster. London, 1817. — From the Author. 



Third Annual Report on the Geological Survey of the State of Penn- 

 sylvania. By Henry D. Rogers, State Geologist. Harrisburg, 

 1839. — From the Author. 



A Catalogue of the Shells arranged according to the Lamarckian 

 System, together with descriptions of new or rare species, con- 

 tained in the collection of John C. Jay, M.D. New York, 1839. 

 From the Author. 



Mecanique Celeste. By the Marquis de la Place. Translated, with 

 a Commentary, by Nathaniel Bowditch, LL. D. Vol. IV. 

 With a Memoir of the Translator, by his son, N. Ingersoll 

 Bowditch. Boston, 1839. — From the Children of the Trans- 

 lator. 



Report on the Variations of the Magnetic Intensity observed at differ- 

 ent points on the Earth's Surface. By Major Edward Sabine, 

 R.A. London, 1838. — From the Author. 



Dr. Hare made the following verbal communication relative 

 to the blasting of rocks, by the aid of galvanic ignition in firing 

 the charge. 



The Doctor called the attention of the Society to the fact, that he 

 had, so long ago as the summer of 1831, demonstrated the safety, 

 certainty, and facility, which would arise in rock-blusting, whether 



