PASTEUR (Louis). STUDIES ON BEER, ITS DISEASES... with a new theory of fermentation. Paris, Gauthier-Villars, 1876. Large in-8, midnight blue half-chagrin, gilt iron of the Lycée Louis le Grand on the front cover (period binding). A famous study of fermentation, yeasts and beer-making, illustrated with 12 engraved plates and 85 figures in the text. This is the only edition published. Some letters missing due to adherence of the covers. A good copy.