193 



INDEX. 



Abies, Structure of bud, 23, 24. 



Absorption, of water and salts, 9, 45, 172, 173, 189 ; of gases, 29, 30, 190 ; 



spectrum of chlorophyll, 166. 

 Absciss layer, in faUing leaf, 38. 

 Accretion, Growth of cell-wall by, 44. 

 Acetic acid, used as a plasmolyte, 16; in Fleninaing's solution, 116; as 



a solvent of carbonate of lime in cystoUths, 86. 

 Acids, Presence of, in cells, 84, 159, 171 ; Formation of, 158, 171. 

 Achromatic spindle, 106, 115. 

 Actinomyces, 89. 

 Aeration of plants, 39, 179. 

 Aethalium, 8, 97, 181. 

 Alburnum, Function of, 175. 



Alcohol, used as a fixing agent, 116 ; as a solvent of chlorophyll, 165. 

 Aleurone grains, 176. 

 Alg£e, Position of, 6 ; Types of cell amongst, 90 ; Reproduction in, 93, 



95, 98, 99, 147. 

 Alkalis, used in demonstrating cuticle, 45 ; Action of, upon vegetable 



colouring matters, 168 ; Action of, upon collenchyma, 40. 

 Alkaloids, Formation and fate of, 159, 171 ; Varieties of, 171. 

 AlHum, for material in study of mitosis, 116. 

 Alternation of generations, 118, 154. 

 Aluminium, Presence of, in plants, 157. 

 Amitosis, 100 ; in Tradescantia hairs, 100 ; in Chara, lOQ ; in Cambial 



cells, 58, 100 ; in Spirogyra, 93. 

 Amido-acids, in proteid formation, 159, 170, 177 ; as a circulating food, 



170, 177 ; as a reserve food, 177 ; Asparagiu, one of the, 170, 177. 

 Amines, 7, 171. 

 Ammonia, Absorption of, by plants, 33, 169, 174 ; Conversion of, by bacteria, 



158, 173. 

 Amoeba, 8, 97. 



Amygdalin, Decomposition of, by emulsin, 171. 

 Anaerobic respiration, 179. 

 Anabolism, 157, 159, 177. 

 Analyser, Use of, in study of starch, 162. 

 Anaphase ; see Mitosis. 

 Angiosperms, Position of, 6; Reproductive cycle in, 117, 119; see also 



Homology. 



