Signed book: Etudes sur les Maladies des Vers a Soie [Studies on Diseases of Silk Worms]. Paris: Gauthier-Villars, 1870. Softcover, 6.25 x 9.5, 322 pages. Signed and inscribed on the half-title page to his lifelong friend and confidant Charles Chappuis in ink, “Souvenir d’amitie a mon ami Ch. Chappuis, L. Pasteur.” Includes the second volume (signed on the cover by Chappuis) and a custom-made slipcase. Autographic condition: fine. Book is in good condition, with restorations and reinforcements to covers and binding; bookplate of Lucius Wilmerding affixed inside. Pasteur’s work concerns his studies of silkworm disease and practical methods of combating and preventing it. An important topic in Pasteur’s career—encouraged by his patroness, Empress Eugenie—his research with the silkworms helped shape his future concepts on the influence of environment on contagion, leading to his most significant contributions in the study of causes and prevention of disease. Pre-certified PSA/DNA.
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