SUBJECT INDEX 
ABSORPTION OF WATER: relation of, to 
regeneration, 223 tf.; a basis for judg- 
ing effects of ions, 453; effect of H. 
and OH. ions on, 464 ff.; by muscles 
and soaps, 510 ff. 
AcIps: physiological effects of, 453 {f., 
501 tf. 
ACTINIA CARA: heteromorphosis in, 166, 
ACTINIA DIAPHENA: heteromorphosis in, 
171. 
ACTINIA EQUINA: heteromorphosis in, 
66 ff.; stereotropism in, 170. 
ACTINIA MESEMBRYANTHEMUM: geotro- 
pism in, 183; basal end preferred in new 
growth, 201. 
ACTINOSPHERIUM: exception to Pfli- 
ger’s law, 440; liquefaction of proto- 
plasm of, 448. 
ADAMSIA RONDELETTI: heteromorphosis 
in, 166. 
ADVENTITIOUS ROOTS: stereotropism of, 
136. 
AGLAOPHENIA PLUMA: heteromorphosis 
in, 115, 130; morphology of, 130; deter- 
minants of heteromorphosis in, 132; 
stereotropism in, 135; longitudina. 
growth of, 136; larvee of, 137; geotro- 
pism in, 176. 
ALG#: influence of direction of rays of 
light on, 5, 89; heliotropism of swarm- 
spores of, 283 
AMBLYSTOMA: influence of central nery- 
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. 
AMPHIpPyRA : heliotropism in, 21; stereot- 
ropism in, 21; geotropism in, +: 
AMPHITRITE: artificial parthenogenesis 
in, 770. 
ANEMONIA SULCATA: 
in, 166. 
ANISOTROPY: influence of intense light 
on, 62. 
ANTENNULARIA: heieromorphosis in, 
628 ff. 
heteromorphosis 
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.; twin production 
in, 303 ff.; limit of divisibi ity of em- 
bryo of, 323 ff.; lack of oxygen and seg- 
mentation of eggs of, 400 f. effect of 
ions on unfertilized ogRs of, 576 ff.; on 
fertilized eggs of, 581 ff.; artificial par- 
thenogenesis in, 624 ff, 
ARTEMIA MULHAUSENIT: artificial con- 
version into Branchipus, 237 ff. 
ARTEMIA SALINA: conversion into Mal- 
hausenii, 237 ff. 
ARTISTIC IMPULSE: 
conception of, 165. 
ASCARIS: agglutination of eggs of, 678. 
ASSOCIATIVE MEMORY: definition of, 365. 
ASTERIAS (STAR-FISH): geotropism in 
183 ff., 291; artificial parthenogenesis 
by shaking eggs of, 768, 
ASTERIAS ForBgEsII: artificial partheno- 
genesis in, 644; prolongation of life of 
unfertilized eggs of, 728 ff. 
ASTERINA GIBBOSA: geotropism in, 183. 
ASTERINA TENUISPINA: heliotropism in 
183. 
anthropomorphic 
AUDITORY NERVES: relation of, to orien- 
tation, 188, 
AURELIA AURITA: relation of concentra- 
tion of water to contractions of, 561. 
Bacteria: heliotropism of, 15; orienta- 
tion influenced by assimilation, 15, 
BALANUS PERFORATUS: negative stereot- 
ipl ioe in, 111; change of sense of 
heliotropism in, 113, 272, 417: depth- 
migrations of, 290. 
BARANA CASTELLI: regeneration of, 338. 
Baszs: physiological effects of, 461. 
BATHOMETRIC DISTRIBUTION: of pelagic 
animals, 178: physiological conditions 
determining, 289 ff. 
BEETLES: heliotropism of, 56, 70, 85. 
BLOOD-VESSELS: development of, 297 ff. 
BomByx: parthenogenesis in, 580. 
BomMByYx 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. 
Brancuipus: Schmankewitsch’s experi- 
ment on, 237. 
Bryopsis: organization controlled by 
external forces, 202. 
BursaRiA: heliotropism in, 15. 
. BUTTERFLIES: sleep of, 37; heliotropism 
in, 20, 37. 
7717 
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