626 



SUBJECT-INDEX. 



368-9, 391; persistence of force 

 and physiological, II, 394; of re- 

 productive activity to conditions, 

 II, 411-6; vertebrae development, 

 II, 563-6. (See also Co-adapta- 

 tion.) 



Africa, effect of climate on inhabi- 

 tants, I, 30. 



Agamogenesis : alternation with 

 gamogenesis, I, 266-7, 272-3, 284- 

 94, 336, 592, II, 415; parallelism in 

 karyokinesis, I, 267-8; a process 

 of disintegration, I, 276-7; condi- 

 tions determining its continuance, 



I, 284-94, 295-7, 330; physiological 

 units, I, 351, II, 613; spontane- 

 ous fission, I, 582, 584-7, 589-92, 

 595-6, 599; remarkable extent of, 

 under favourable conditions, I, 

 591-2, 640-1; in Actinozoa, II, 92; 

 in Hydrozoa, II, 102; in Annelida, 



II, 103; innutrition, II, 179-80. 

 AgaricmcB, II, 139, 257. 



Agassiz, L. J. R., zoological classi- 

 fication, I, 380. 



Aggregates, Animal and Plant (see 

 Morphology). 



Agility, a vital attribute, I, 578. 



Agrimony, floral symmetry, II, 42, 

 167, 170. 



Air, In vegetal tissues, II, 567-8, 

 583, 591, 593. 



" Air plants," I, 208. 



Albumen: properties, I, 12; Lieber- 

 kiihn's formula, I, 13; diffusibil- 

 ity, I, 19; in organic tissues, I, 41. 



Alcohols, properties, I, 10-12. 



Algce: reproduction, and the dy- 

 namic element in life, I, 118-9; 

 multlcentral development, I, 163, 

 164; axial development, I, 165; 

 locomotive powers of minute 

 forms, I, 196; uniform tissue and 

 function, I, 200, 586; gamogenesis, 

 I, 271, 279, 280, 283, II, 448, 449, 

 450; fertility, I, 582, II, 440, 441; 

 fission, I, 584, 585; unicellular 

 forms, II, 22; integration in Gon- 

 fervoidrw and Conjugates, II, 25; 

 pseudo-foliar and axial develop- 

 ment, II, 28-33, 57; foliar devel- 

 opment, II, 76, 91; branch sym- 

 metry, II, 145: cell metamor- 

 phoses, II, 176; tissue differentia- 



tion, II, 244, 246, 251, 252, 256, 

 272, 385-6; adaptation of repro- 

 ductive activity to conditions, II, 

 289; integration, II, 292; indefi- 

 niteness, II, 295; genesis and de- 

 velopment, II, 4G3. 

 Alimentary canal: metabolic pro- 

 cesses and agents, I, 68-9, 74; 

 structural traits, I, 192; progres- 

 sive development, I, 195; relation 

 to environment, I, 196; function, 



I, 205; segmentation in annelids, 



II, 125; differentiation, II, 301, 

 302, 321-2, 323-5, 389; specializa- 

 tions in birds, II, 325; in rumi- 

 nants, II, 327-9; differentiation of 

 liver, II, 329-33; muscularity, II, 

 364. 



Allotropism: of organic constitu- 

 ents, I, 4, 9; muscular action, 1,59. 



Alloys, melting point of, I, 339. 



Alternation of generations, mislead- 

 ing application of term, II, 84. 

 (See Agamogenesis and Gamogen- 

 esis.) 



Amitosls, occurrence of, In morbid 

 tissues, I, 264. 



Ammonia: properties, I, 7, 9; nerve 

 stimulation, I, 55. 



Amoeba: central development, I, 163; 

 a primary aggregate, II, 86; sym- 

 metry of encysted, II, 186; sym- 

 biosis, II, 400. 



Amphibia: classification of, I, 392; 

 embryonic respiratory system, I, 

 457; structure and media, I, 483; 

 limb locomotion, II, 15; segmenta- 

 tion, II, 122, 225; outer tissues, 

 II, 311; respiration, II, 334, 338; 

 Owen on skeleton, II, 552, 557, 

 558. 



Amphioxus: separation of segmenta- 

 tion spheres of egg, I, 691; em- 

 bryogeny, II, 121; local segmenta- 

 tion, II, 125-7, 605; genesis of 

 vertebrate axis, II, 213-6, 218, 

 222; development, II, 564. 



Amphipnous cuchia, vascular air- 

 sacs, II, 337. 



Anabas scandrns, the climbing fish, 

 I, 480, 4S3. 



Anacharfs (see Floidra). 



Anresthetics, diverse effects of, I, 



