French chemist and physicist (1778–1850) best known for his investigations into the nature and behavior of gases. Third-person ALS in French, one page, 4.75 x 2.75, August 17. In full (translated): “Mr. Gay-Lussac begs Mr. Shipwith to be kind enough to excuse him. He leaves tomorrow for the country with his whole family and today is in the midst of the preparations.” Light wrinkling from mounting, and mild soiling, otherwise fine condition. Although Mr. Shipwith is not identified, his name has appeared in the correspondence of Thomas Paine during his stay in France, and was most likely with the consulate service at Nailly. RRAuction COA.
