To Your MAJESTY, as the Founder and Patron of the Society, they, of right, should be presented. If they shall be found worthy of the approbation of a MONARCH, who has diftinguished His Reign by the utility of His Inftitutions for improving the elegant Arts, as well as by the fplendour and fuccefs of His undertakings to extend the knowledge of Nature, The Royal Society of Edinburgh may hope to occupy a refpectable place among thofe Bodies of learned Men, who, by their united efforts, have contributed, buted, fo eminently, to the progress of Science and of Tafte in Europe. I am, with the highest respect, Your MAJESTY's dutiful fubject, and devoted fervant, BUCCLEUGH. *N. B. PART I. comprehending the HISTORY, is contained under one fet of pages; and LIST of DONATIONS prefented to the ROYAL SOCIETY of Edinburgh, 77. 1. Experiments on the Motion of the Sap in Trees. By Dr John Walker, 3. II. The Theory of Rain. By Dr James Hutton, III. On the Caufes which affect the Accuracy of Barometrical Mea- furements. By Mr John Playfair, IV. On the Ufe of Negative Quantities in the Solution of Problems by Algebraic Equations. By Mr William Greenfield, V. Experiments and Obfervations upon a remarkable Cold which ac- companies the Separation of Hear Froft from a clear Air. By VI. An Account of the Method of making a Wine, called by the Tartars |