In defense of Louis Pasteur: Critique of Gerald Geison's deconstruction of Pasteur's discovery of molecular chirality

Abstract

Louis Pasteur discovered the phenomenon of molecular chirality, based on his studies of tartrate crystals. His finding remains one of the most important discoveries in the history of chemistry and a fundamentally important chemical phenomenon, with essential implications in biology. In his 1995 book The Private Science of Louis Pasteur, the eminent historian of science Gerald L. Geison (1943-2001) was highly critical of much of Pasteur's work including his discovery of molecular chirality. The in-depth analysis provided in this article indicates, however, that the negative assessment of Pasteur's chirality work by Geison is entirely without scientific basis. Criticisms of Pasteur in the book for other "transgressions" in his chirality work, such as supposed influences of his personal biases and stubbornly held a priori notions, misrepresentation of his scientific work in his publications and lectures, and unethical and career-minded conduct, are also not supported by the evidence. Other troubling features of the book include a broad failure to assure accuracy in a variety of fundamental and important information, including errors in names, dates, events, referencing, indexing, and French-language text.

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