First edition illustrated with two etched plates under tissue guards.
Claude Bernard’s (1813–1878) laboratory notes on alcoholic fermentation (see pp. 3–33) record his experiments on the search for yeast germs on grape clusters, the formation of alcohol in grape juice without ferment, on sound and rotten grapes, on the search for a soluble alcoholic ferment and the influence of decay, and on the production of alcohol. All these experiments were conducted on his estate at Saint-Julien in October 1877, during the grape harvest.
This conception of a soluble ferment as the origin of yeast, a living organism, marked the starting point of the famous controversy between Pasteur and Berthelot.
Rare and appealing copy, largely uncut.