INDEX 



Abiogenesis, 223. 



Acids, effect on heliotropism, 132. 



Action currents, 69. 



Alpheus, 215. 



Amblystoma, galvanotropism in, 146. 



skin secretion caused by constant 



current, 103. 

 Amoeba, 57. 



imitation of movements of, 56. 

 Amphipyra, stereotropism of, 157. 

 Amphoteric character of proteins, 35. 

 Anaesthetics, 6. 

 Antagonistic effects of salts, 46. 



of K and Ca salts, 86. 



of Na and Ca or Mg salts, 79. 



of salts with univalent cations and 

 bivalent or trivalent cations, 47. 

 Antennularia, geotropism of, 148. 



regeneration in, 217. 

 Aphides, 4, 165, 187. 

 Araki, 18. 



Arbacia egg, absence of complicated 

 structure, 193. 



artificial parthenogenesis in, 167. 



development of deformed egg, 193. 



effect of NaHCOs on development 

 of, 97. 



limit of divisibility of, 167. 

 Arrhenius, 108, 113. 

 D'Arsonval, 55, 58. 

 Artificial hybridization, 162. 

 Artificial parthenogenesis, 165. 

 Aspergillus, 72. 

 Assimilation in plants, effects of light of 



certain wave lengths, 115. 

 Associative memory. 6. 

 Asterias, speedy death of unfertilized 

 maturated eggs, 224. 



sperm of, used to fertilize eggs of 



sea urchin, 162. 

 Asterina, artificial parthenogenesis, 172. 



sperm used to fertilize sea-urchin 



egg, 162. 



Astrospheres, orientation of, 65. 

 Autoxidizable substances, 13. 



Von Baer, 161. 

 Bancroft, 103, 141. 

 Bardeen, 210, 213. 



Barium salts, effects of, on peristalsis, 93. 



on Poly orchis, 93. 



on rhythmical contraction of muscle, 

 87. 



on secretion, 93. 

 Barrat, 101. 

 Bataillon, 175. 

 Bateson, 186. 

 Van Bemmelen, 43. 

 Bernard, 21. 

 Bernstein, 55, 57, 69. 

 Berthold, 57. 

 Berzelius, 7. 

 Bicarbonates, r61e of, in preservation of 



life, 96, 97. 

 Bickford, Miss, 204. 

 Von Biebra, 41. 

 Blasius, 145. 

 Blastomeres, differentiation of, 196. 



isolated, development of, 30. 

 Blue rays most effective in heliotropism, 



127. 



Bock, 94. 



Bordet, 23, 154, 182. 

 Born, 162, 190. 

 Boveri, 30, 60, 164, 181, 194. 

 Brachystola, 188. 

 Bredig, 27, 37. 

 Brenner, 145. 

 Broca, 19. 

 Briinings, 69. 

 De Bruyn, 26. 

 Buchner, 21. 

 Budgett, 21, 104, 143. 

 Bugarsky, 96. 

 Buller, 153. 

 Bullot, 51, 175. 

 Bunge, 23. 

 Biitschli, 32. 

 Butterflies, 139. 



larvae of, 126. 



Calcium precipitants, 80. 



in phenomenon of contact reaction, 83. 

 Calcium salts, in muscular contraction, 79. 



in coagulation of milk, 89. 

 Campanularia, transformation of organs 



in, 219. 

 Carbonates in blood, 96. 



227 



