Louis Pasteur, Frank Faulkner, David Constable Robb (1879). “Studies on Fermentation: The Diseases of Beer, Their Causes, and the Means of Preventing Them”
Address at the "Sorbonne Scientific Soirée" on April 07, 1864. "The Life of Pasteur". Book by René Vallery-Radot, translated by R .L. Devonshire, p. 140, archive.org. 1902.