A letter from Mr. Benjamin Wilson F. R. S. and Member of the Royal Academy at Upsal, to Mr. Aepinus, Professor of Natural Philosophy in the Imperial Academy of Sciences at St. Petersburg, and Member of the Academies of Berlin, Stochholm, and Erfurth. Read at the Royal Society December 23, 1763, and March 1764 - Wilson, Benjamin 1721-1788 (1764)