Amsterdam: Chez Pierre Mortier 1741, 1760. Vol 1: [III]-XVI, 727 pages. Vol 2: , 743 pages. Vol 3: , 648 pages. Vol 4: , 404, XXXVI, 372, , [III]-VIII, 256 pages. 4 x 6 1/2 inches (12mo). Uniform period leather bindings with gold decoration to the spine panel, leather labels and paper label as well on 4th volume. Leather is rubbed and scuffed, corners worn, spines hard to read. Second volume has tear to leather at top of spine. Bindings are fundamentally sound. Clean internally. First 3 volumes have decorated pastedown endpapers but plain flyleaves. Last volume has marbled endpapers. Not collated, assumed complete, sold as is. Very Good. Boards. 
Roughly translated, "A general table (index) of the matters contained in the history and the memoirs of the Royal Academy of Sciences of Paris from the year 1699 through 1734". Three volumes (complete) covering the alphabet A-Z. Together with the fourth volume not usually found, covering years 1735-1751, and including a history of the Royal Academy of Sciences, published in 1760 (complete in one volume) plus another index.