-- -- on autofermentation of yeast-juice, 80. -- nature of acceleration produced by, 78. Autofermentation of yeast-juice, 33, 119. -- -- effect of arsenates and arsenites on, 80. BAEYER'S theory of fermentation, 99. Boiled yeast-juice, effect of, on fermentation by yeast-juice, 41. CARBOXYLASE, 81, 93. -- relation of to alcoholic fermentation, 83. Co-enzyme, effect of electric current on, 67. -- enzymic destruction of, 63. -- of yeast-juice, 59. -- precipitation of, by ferric hydroxide, 67. -- properties of, 63. -- removal of, from yeast-juice, 59. -- separation from phosphate and hexosephosphate, 67. Concentration of sugar, effect of, on fermentation by yeast-juice, 34, DAUERHEFE, 38. Diastatic enzyme of yeast-juice, 33. Dihydroxyacetone, fermentability of, 104. -- formation of, in fermentation, 105. Dried yeast (Lebedeff), 24, 38. ENDOTRYPTASE, 20. Enzyme action, laws of, 121. Enzymes, combined with protoplasm, 126. Equation of alcoholic fermentation, 51. FERMENTATION by yeast-juice, causes of cessation of, 64. Fermenting complex, 63. -- power of yeast-juice, estimation of, 27. Formaldehyde, production of in alcoholic fermentation, 117. Formic acid theory of fermentation, 114. Fructose, fermentation of, by yeast-juice, 32. -- -- in presence of phosphate, 73. -- relation of, to fermenting complex, 74. Fusel oil, formation of, from amino-acids, 85. GALACTOSE, fermentation of, by yeast, 131. -- fermentation of, by yeast-juice, 32. Glucose, fermentation of, by yeast-juice, 32. Glyceraldehyde, fermentability of, 104. Glyceric acid, fermentation of, 108. Glycerol, formation in fermentation, 95. Glycogen as an intermediate product of alcoholic fermentation, 116. -- fermentation of, by yeast-juice, 33. -- removal of, from yeast, 39. Grinding of yeast by hand, 22. -- -- -- mechanical, 23. Glutamic acid, decomposition of, by yeast, 90. HEFANOL, 38. Hexosediphosphoric acid phenylhydrazone, hydrazine salt of, 50. Hexosemonophosphoric acid osazone, hydrazine salt of, 50. Hexosephosphatase, 54. -- effect of arsenate and arsenite on action of, 79. Hexosephosphate, constitution of, 51. -- enzymic decomposition of, in yeast-juice, 56. -- -- hydrolysis of, 51. -- formation of, 48. -- hydrolysis of, by acids, 49. -- preparation of, 48. -- properties of, 49. -- theory of formation of, 57, 117, Hexoses, action of alkalis on, 96, ISOAMYL alcohol, formation from leucine, 87. Isoleucine, decomposition of, by yeast, 87. α-KETONIC acids, fermentation of, 81. LACTIC acid, destruction of, by yeast-juice, 102. -- -- formation from sugars by alkalis, 97. -- -- -- of, in yeast-juice, 102. -- -- non-fermentability of, by yeast, 103. -- -- theory of fermentation, 102. Leucine, decomposition of, by yeast, 87. MACERATION extract, preparation of, 25. Mannose, fermentation of, by yeast, 131. -- -- of by yeast-juice, 32.