Memoir on the Origin and Composition of the Meteoric Stones Which Fell from the Atmosphere, in the County of Fairfield, and State of Connecticut, on the 14th of December 1807; In a Letter, Dated February 18th 1808, from Benjamin Silliman, Professor of Chemistry in Yale College, Connecticut, and Mr. James L. Kingsley, to Mr John Vaughan, Librarian of the American Philosophical Society