French astronomer and writer (1732-1807). ALS in French, signed “La Lande,” one page both sides, 4.25 x 6.5, April 7, 1773. Untranslated handwritten letter to Jean Andre Mallet, correspondent of the Academy of Sciences at Geneva. In very good to fine condition, with a rusty paperclip impression to the top edge, and staining along the hinge.
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