Æsculin, =81=, 82. Ætiophyllin, 106, 107, 109. Ætioporphyrin, 108, 109, 110. Alanine, 168, 177. Albumins, 175, 176. Albuminoids, 175, 176. Alcogel, 205. Alcohol, ethyl, 40, 125. benzyl, 80. carnaubyl, 135. ceryl, 135, 140. cetyl, 129, 135. coniferyl, 80. melissyl, 135. myricyl, 129, 140. phytyl, 104, =105=. polyhydric, 31. Alcohol glucosides, 80. Alcosol, 205. Aldehyde, benzoic, 148. cinnamic, 148. formic (_see_ formaldehyde). glyceric, 35. Aldehyde glucosides, 80. Aldehydrol, 46. Aldonic acids, 42, 44. Aldose, 32. Alizarin glucosides, 78. Alkalinity of protoplasm, 234. Alkalies as toxins, =247=. "Alkali salts," 10, =247=. "Alkali soils," 10, =14=. Alkaloidal reagents, 154, 172. Alkaloids, 18, 20, 151, =153=, 248. Allose, 36, 37. Allyl isosulfocyanide, 88, 89, 148. Allyl sulfide, 148. [alpha]-glucose, 46. [alpha]-glucosides, 55. [alpha]-methyl glucoside, =47=. Altrose, 36, 37. Aluminium, =4=. Amandin, 170, 176. Amines, =151=. Amino-acids, 6, 151, =166=, 179, 248. Ammonia, 152. Ammonium hydroxide, 142, 152. Ammonium salts, 6. Amorphous chlorophyll, 104, 105 Amphoteric electrolytes, 172. Amygdalase, 87. Amygdalin, 81, =86=. Amyl acetate, 148. Amylase, 186, 189, =191=. Amylo-cellulose, 60. Amylo-dextrin, 61. Amylo-pectin, 60. Amylose, 60. Anergic food, =2=, 17. Animal nucleic acids, =162=. Antagonism, 14. Anthocyans, 83, 102, =115=, 121. Anthocyanidins, 116. Anthocyanin, 102. Anthoxanthins, =117=. Anthraquinone, 83. Antienzymes, 120, =197=, 198. Antioxidase, 120. Antiscorbutic C, 243. Apigenin, 84, 118. Apiin, =84=. Apiose, 84. Araban, =69=. Arabinose, 35, 44, 68, 69, 88. Arabinosides, 56. Arbutin, 77, =79=. Arginine, 169, 171, 177. Arsenic, 13. Asymmetric carbon atom, 33. Atropine, 155, =156=. Autotrophic plants, 16, 18. Auximones, 239, 240, =244=. Available plant food, =4=. Avenalin, 176. Baptigenin, 79. Baptisin, =79=. Beeswax, 133. Beet sugar (_see_ sucrose). Berberine, 155. Betaine, =152=. [beta]-glucase, 55. [beta]-glucose, 46. [beta]-glucosides, 55. [beta]-methyl glucoside, 47. Biogens, 223. Biological significance, =19=. Biuret reaction, 173. Borneol, 148. Boron, 13. Bromelin, 189. Brucine, 155, =157=. Buffers, 236. Butter fat, 133. Butyric acid ferment, 190.