595 



SUBJECT-INDEX. 



S, 498, 503 ; abnormal vegetal growth, 

 S, 512; organ of, (see Alimentary 

 canal). 



Obesity, nutrition and genesip, S, 459- 

 62, 484. 



OJ-om-s ; floral fertilization, S, 252, 253 ; 

 animal protection, S, 414. 



Offspring, influence of age on, S, 480. 



Oken, L. ; archetypal hypothesis, S, 

 109 ; theory of supernumerary bones, 

 S, 20fl ; on the skull, S, 530. 



Opimffa (see Cactacea). 



Orehids : pollen propulsion, I, 54; leaf 

 formation, 2, 56 ; aBi'ial roots and 

 physiological differentiation, S, 238, 

 240 ; foliar surface, 2, 247. 



Orgiiio matter : properties of elements, 

 i, 3-5, 22; of binary compounds, 1, 

 5-10; of ternary, i, 10-12; quaternary 

 1, 12-14, 23 ; molar and molecular 

 mobility, 1, 14 ; colloid and crystalloid 

 form, 1, 15-8, 23; their diffusibility, 

 1, 18-21, 24 ; extreme complexity, 1, 

 21; modi6ability,J, 25, 41 ; capillarity 

 and osmosis, 1, 26 ; effects of heat, 1, 

 27 ; of light, 1, 28-33 ; nitrogenous, 

 1, 35-41 ; oxidation and evolution of 

 heat, i, 43, 57 ; genesis of electricity, 

 1, 47-9, 57 ; transformations and 

 persistence of force, i, 57; sensible 

 motions in, 1, 57 ; inorganic matter, 

 1, 89-93 ; resume of generalizations, 

 1, 94; instability, 1, 121, 420, 173; 

 and heterogeneity, 1, 286-91 ; " spon- 

 taneoiis generation," and evolution of, 



1, 479-34, 486; cell-doctrine and 

 evolution of, 2, 10-13. 



Organization (see Structure). 



Osmosis : organic effects, 1, 26, 27 ; in 

 animals, 1, 55 ; S, 361-4 ; in vascular 

 system, 2, 298, 327-34; in vegetal 

 tissue, 2, 537, 544, 546, 554, 561-5. 



Ossification (see Eoue) . 



Owen, Sir R.: metagenesis and partheno- 

 genesis, 1, 213 ; fossil mammalia, 1, 

 326; human parasites, i. 343; con- 

 tinuous operation of creative power, 1, 

 404 ; tlieory of vertebrate skeleton, 2, 

 110,517-35; theory of supernumerary 

 bones, 2, 206 ; Esuhricht on ascaris, 



2, 465. 



Oxalis : radial symmetry, 2, 137 ; foliar 



surface, 2, i;48. 

 Oxen and sheep, growth of, 7, 128, 131. 



Oxidation {see Oxvgen) . 



Oxygen : oliemical and physical proper> 

 ties, 1, 3-5, 20, 22 ; binary compoundt, 

 1, 5-7, 10, 22; ternary, 1, 10-12; 

 quaternary, 1, 12-14, 23 ; a crystal- 

 loid, 1, 21 ; combining power and 

 atomic weight, i, 31 ; organic ohango 

 from, 1, 34; heat generation, /, 43-6 1 

 phosphorescence, 1, 46 ; nerve force 

 dependent on, 1, 50 ; necessary to 

 aniinal life, 1, 75-6 ; amount inhaled, 

 1, 170. 



Paoet, Sie J., blood changes, from 

 diseiise, 1, 177, 484. 



Palaeontology : distribution in time, /, 

 320-7, 328 ; special creation, 1, 340 ; 

 record congruous with evolution, 1, 

 397-401, 472. 



FalmeUa: tissues, ^, 226 ; sexual genesis, 

 2, 429. 



Parasites : aberrant type forms, 1, 296 j 

 distribution, 1, 313 ; special creation 

 and human, 1, 342, 354; retrograde 

 development, 1, 370 ; nutrition and 

 genesis in vegetal, 2, 463, 468 ; in 

 animal, 2, 464-6, 468. 



Parthenogenesis ; true and pfevdo-, 1, 

 213-5 ; laws of multiplication, 2, 395 j 

 of ariiculata, 2, 426. 



Peloria : in gloxinia, 2, 151 ; pha;no- 

 gams, 2, 163. 



Penguin, dermal stracture, 2, 300. 



Persistence of force : propertif s of com- 

 pounds, i, 3; organic transformation, 

 1, 57; growth, 1, 122, 131, 132; 

 organic energy, 1, 176 ; crganic repair, 

 1, 177; variation, 1, 271; genesis, 

 heredity, and variation, 1, 291; nioi- 

 phological summary, 2, 217 ; vegetal 

 tissue differentiation, 2, 227; physio- 

 logical development, 2, 3S7. 



Petals: foliar homology, S, 33-6 1 

 "adnate," 2, 55. 



Petrels, Darwin on, 1, 368. 



Phanerogamia {see Phcenogams). 



Phseiiogams : uni- and multi-axial sym- 

 metry, 2, 126-8 ; unit of composition, 2, 

 136; helicalgrowth, ;?, 16i; tissue and 

 leaf differentiation, 2, 229-31, 379; 

 also bark and cambium, 2, 231-3, 379 ; 

 also outer tissue, 2, 2a 5, 239-42, 253, 

 380 ; wax deposit on leaves, 2, 243-5 ; 

 differentiation of inner tissues, 2, 

 256-8, 381 ; vascular system develop" 



