Post Lot Text
First edition of the second treatise in the book; second edition of the first treatise, which had been published separately the year before. Maupertuis refuted the preformationist theories of embryonic development held by most of his contemporaries in favour of the then discredited epigenetic hypothesis. He rejected all vitalist or spiritual interpretations of the hereditary mechanism, arguing that biparental heredity required corporal contributions from each parent. Fine copy from the Rohan-Soubise library.