SUBJECT INDEX 



ABSORPTION OF WATER: relation of, to 

 regeneration, 223 ff. ; a basis for judg- 

 ing effects of ions, 453; effect of H. 

 and OH. ions on, 464 ff. ; by muscles 

 and soaps, 510 ff. 

 ACIDS: physiological effects of, 453 ft'., 



501 ff. 



ACTINIA CARA: heteromorphosis in, 166. 

 VfTiNi v DIAPHENA: heteromorphosis in, 



171. 

 ACTINIA EQDINA: heteromorphosis in, 



166 ff. ; stereotropism in, 170. 

 ACTINIA MESEMBRYANTHEMUM: geotro- 

 pism in, 183; basal end preferred in new 

 growth, 201. 



ACTINOSPH.ERIUM: exception to Pflu- 

 ger's law, 440; liquefaction of proto- 

 plasm of, 448. 

 ADAMSIA RONDELETTI: heteromorphosis 



in, 166. 

 ADVENTITIOUS ROOTS : stereotropism of, 



136. 



\GLAOPHENIA PLUMA : heteromorphosis 

 in, 115. 130; morphology of, 130; deter- 

 minants of heteromorphosis in, 132; 

 stereotropism in, 135; longitudinal 

 growth of, 136 ; larvae of, 137 ; geotro- 

 pism in, 176. 



VI.GJE : influence of direction of rays of 

 light on, 5, 89; heliotropism of swarm- 

 spores of, 283. 



AMBLYSTOMA: influence of central nerv- 

 ous system on development of, 436 ff. ; 

 galvanotropism in, 440 ff. 

 AMMONIUM CHLORIDE : effects on regen- 

 eration and growth, 246. 

 AMMOTHEA : segmentation in, 340. 

 AMOEBA: spontaneity in, 321. 

 AMPHIPYRA : heliotropism in : 21 ; stereot- 

 ropism in, 21 ; geotropism in, 44. 

 AMPHITRITE: artificial parthenogenesis 



in, 770. 

 \NEMONIA SULCATA: heteromorphosis 



in. 166. 

 ANISOTROPY: influence of intense light 



on, 62. 

 ANTENNULARIA: heieromorphosis in, 



628 ff. 



ANTENNULARIA ANTENNINA: geotropism 

 in, 177; growth in, dependent on geot- 

 ropism, 191-204; variation in, 204; irri- 

 tability and growth in, 213; hetero- 

 morphosis in, 249. 



ANTS: influence of less refrangible rays 

 of light on wingless form, 11; heliot- 

 ropism of winged form, 19,113; rela- 

 tion between heliotropism and sexu- 

 ality of, 52. 113; factors determining 

 nuptial flight of, 53. 



ARBACIA (SEA-URCHIN) : effect of change 

 of concentration of sea-water on cleav- 

 age of eggs of, 253 ff. ; t\yin production 

 in, 303 ff. ; limit of divisibility of em- 

 bryo of, 323 ff. : lack of oxygen and seg- 

 mentation of eggs of, 400 ft. ^effect of 

 ions on unfertilized eggs of, 576 ff. ; on 

 fertilized eggs of, 581 ff . ; artificial par- 

 thenogenesis in, 624 ff. 



ARTEMIA MULHAUSENII: artificial con- 

 version into Branchipus, 237 ff. 



\RTEMIA SALINA: conversion into Miil- 

 hauseuii, 237 ff. 



ARTISTIC IMPULSE: anthropomorphic 

 conception of, 165. 



ASCARIS: agglutination of eggs of, 678. 



ASSOCIATIVE MEMORY : definition of, 365. 



ASTERIAS (STAR-FISH): geotropism in 

 183 ft'., 291 ; artificial parthenogenesis 

 by shaking eggs of, 768. 



ASTERIAS FORBESII : artificial partheno- 

 genesis in, 644; prolongation of life of 

 unfertilized eggs of, 728 ff. 



ASTERINA GIBBOSA : geotropism in, 183. 



ASTERINA TENUISPINA: heliotropism in 

 183. 



AUDITORY NERVES : relation of, to orien- 

 tation, 188. 



AURELIA ACRITA : relation of concentra- 

 tion of water to contractions of, 561. 



BACTERIA: heliotropism of, 15; orienta- 

 tion influenced by assimilation, 15. 



BALANUS PERFORATUS : negative stereot- 

 ropism in, 111; change of sense of 

 heliotropism in, 113, 272, 417: depth- 

 migrations of, 290. 



BARANA CASTELLI: regeneration of, 338. 



BASES: physiological effects of, 461. 



BATHOMETRIC DISTRIBUTION : of pelagic 

 animals, 178: physiological conditions 

 determining, 289 ff. 



BEETLES : heliotropism of, 56, 70, S5. 



BLOOD-VESSELS: development of, 297 ff. 



BOMBYX : parthenogenesis in, 580. 



BOMBYX LANESTRIS: heliotropism in, 38. 



BOMBYX NEUSTRA : geotropism in, 85. 



BRAIN: regeneration of, 251; physiology 

 of, in worms, 345 ff. 



BRANCHIOMMA: explanation of eye on 

 gill of, 97. 



BRANCHIPUS: Schmankewitsch's experi- 

 ment on, 237. 



BRYOPSIS: organization controlled by 

 external forces, 202. 



BURSARIA: heliotropism in. 15. 



BUTTERFLIES: sleepof. 37; heliotropism 

 in, 20, 37. 



777 



