INDEX 



343 



145, 146*, 147*, 148; embryology, 

 149, 150*; nutrition, 148; reproduc- 

 tion, 148-149. 



Granular theory of protoplasmic struc- 

 ture, 20. 



Gravity, 54, 221-222. 



Green gland, 195*, 205. 



Growth, 13-15; by accretion, 13; by 

 intussusception, 13: Ameba, 50; 

 Paramecium, 67. 



Gullet: Euglena, 82, 83*, 84; Parame- 

 cium, 59, 60*, 67. 



Gymnameba, 81. 



Gynandromorph, 260, 262. 



Habit formation, Crayfish, 223-224. 



Habitat, 275-277, 284. 



Haeckel, 229. 



Haematochrome, 84. 



Haemoglobin, 90, 171. 



Hair of Honeybee, 236*. 



Halictus, 265*, 266. 



Haller, Albrecht, 272-273. 



Halobiotic fauna, 277. 



Harvey, William, 271*, 272. 



Hatching: Crayfish, 216, 217*; Honey- 

 bee, 253 ; Hydra, 137. 



Head, Honeybee, 235*-236. 



Hearing, Honeybee, 247-248. 



Heart : Crayfish, 195*, 202 ; Earthworm, 

 172*, 173; Honeybee, 241*, 242. 



Hemosporidia, 82. 



Hepatic duct, 201, 202-203. 



Heredity, 284-285, 287-290; acquired 

 characters, 287-288; and evolution, 

 275-297; in Paramecium, 79; meth- 

 ods of study, 285. 



Hermaphrodite, 149, 156. 



Hermit crab, 143*, 297. 



Heron, 300. 



Hertwig, 36. 



Heteromorphosis, 189, 219*, 220. 



Hibernation, 276. 



Highways of dispersal, 278. 



Hirudinea, 190. 



Histology, 2; historical, 27 T 



Hofer, 49. 



Hofmeister, 35. 



Holmes, S. J., 224. 



Holoblastic egg, 108, 109*. 



Holophytic nutrition, 85. 



Holotrichida, 81. 



Holozoic nutrition, 85. 



Homo, 3. 



Homologous structures, 291, 292*. 



Honey, 256-257; cells, 256; comb, 254, 

 2 55*, 256; flavor, 257; sac, 240, 241*, 

 257- 



Honeybee, 15, 233-259, 275, 277, 284; 

 activities of workers, 254-258; adapta- 

 tions, 282; anatomy, 234-250', 241*; 

 diseases, 259; drone, 234*; embry- 

 ology, 251-252*; enemies, 258-259; 

 instincts, 303-304 ; metamorphosis, 

 252*, 253*, 254; queen, 233, 234*; 

 reproduction, 248*-25i, 249*; worker, 



234*- 



Hooke, 34. 



Horse, ancestry, 3 ; evolution, 202-293*. 



Huggins, 224. 



Hunger, 16. 



Huxley, 19, 193, 262, 270. 



Hydra dioecia, 116. 



Hydra fusca, in, 116-139, 118*, 128*, 

 129*, 141, 155, 160, 171, 219, 228, 277, 

 278, 284, 297; anatomy, 117-125, 

 118*; behavior, 127, 128*, 129*, 132; 

 contrasted with Planaria, 159; nutri- 

 tion, 125-127; regeneration, i37*-i39J 

 reproduction, i33*-i37. 



Hydra grisea, 116. 



Hydra viridis, 116, 117, 127, 143. 



Hydrogen, in protoplasm, 21. 



Hydrozoa, 139, 141. 



Hymenoptera, 260, 261. 



Hypostome, 117, 118*. 



Id, 288. 



Idioplasm, 288. 



Ileum, 240, 241*. 



Imago, 234*, 252. 



Imitations, of Ameba, 45-46, 47-49. 



Incurrent canal, 145, 151*, 152. 



Incurrent pore, 145*. 



Indirect cell division, 29-32, 30*. 



Individual, 3, 15, 71, 151. 



Inferolateral nerve, 205. 



Infusoria, 80, 81, 101. 



Ingestion: Ameba, 46-49, 47*, 48*; Cray- 

 fish, 201 ; Earthworm, 170; Grantia, 

 148; Hydra, 125-126; Paramecium, 

 66*. 



Inheritance : acquired characters, 287- 

 288; ancestral, 289; germ plasm in. 



