RR Auction: Fine Autographs and Artifacts

Influential Swiss mathematician (1667–1748) known for his contributions to infinitesimal calculus. Rare LS in French, signed “Bernoulli Pere,” one pag

French naturalist, mathematician, and author (1707–1788). Manuscript DS in French, signed “Leclerc de Buffon,” one page, 6.25 x 6.5, January 5, 1766.

British engineer (1736-1819) who developed an efficient steam engine which was a universal source of power and provided one of the most essential tech

ALS in French, signed “Montgolfier,” one page, 7.75 x 9, May 28, 1785. Letter to Jean-Jacques Froulle, in part (translated): “I have been instructed b

French chemist (1748–1822) whose contributions include the analysis of ammonia and prussic acid, and the discovery of the bleaching properties of chlo

French scholar whose work was important to the development of mathematics, statistics, physics, and astronomy (1749-1827). Desirable untranslated LS i

Italian anatomist (1752–1832) who wrote several important treatises on a wide range of anatomical and medical subjects. ALS in Italian, signed “A. Sca

French physician (1755–1821) who gained a reputation as an expert in cardiology and was Napoleon’s personal physician. Untranslated ALS in French, sig

German naturalist and explorer (1769–1859) who wrote Kosmos, a massive five-volume study which attempted to unify the various branches of man’s knowle

French chemist, mineralogist, and zoologist (1770–1847). ALS in French, signed “A. Brongniart,” one page both sides, 5.25 x 8.25, July 12, [no year].