Word: reagent
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Dates: during 1890-1899
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...last lecture the various kinds of food-stuffs, and to some extent their course through the body. Last night he dealt with the Processes of Digestion and the Digestive Ferments. Dr. Pfeiffer began by dividing all chemical processes into five factors, as follows: The substance, the apparatus, the reagent, the nature of the reaction, and finally the nature of the products of reaction. These five factors are likewise present in all digestive processes. The substance is in this case the food-stuffs; the apparatus, the mouth, stomach, intestines, etc.; the reagents, the saliva, gastric and pancreatic juices, and the bile...