,592 



SUBJECT-INDEX. 



2, 49S, 503 ; abnormal vegetal growth, 

 2, 512 ; organ of, (see Alimentary 

 canal). 



OBESITY, nutrition and genesi?, 2, 459- 

 62, 484. 



Odours : floral fertilization, 2, 252, 253 ; 

 animal protection, 2, 414. 



Offspring, influence of age on, 2, 480. 



Oken, L. : archetypal hypothesis, 2, 

 109 ; theory of supernumerary bones, 

 2, 206 ; on the skull, 2 t 530. 



Opuntia (see Cactacect], 



0/chids : pollen propulsion, /, 54; leaf 

 formation, 2 t 56 ; aerial roots and 

 physiological differentiation, 2&amp;gt; 238, 

 240 ; foliar surface, 2, 247. 



Orginic matter: properties of elements, 

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

 5-10; of ternary, 1, 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 ; modifiability, 1, 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, 1, 43, 57 ; genesis of electricity, 

 1, 47- 9, 57 ; transformations and 

 persistence of force, 1, 57 ; sensible 

 motions in, 1, 57 ; inorganic matter, 

 1, 89-93 ; resume of generalizations, 

 /, 94; instability, 1, 121, 420, 473 ; 

 and heterogeneity, 1, 286-91 ; &quot;spon 

 taneous generation,&quot; 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 ; 2, 361-4; in vascular 

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

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



Ossification (see Bone). 



Owen, Sir K.: metagenesis and partheno 

 genesis, 1, 213 ; fossil mammalia, 1, 

 326; human parasites, 1, 342; con 

 tinuous operation of creative power, 1, 

 404 ; theory of vertebrate skeleton, 2, 

 110, 517-35 ; theory of supernumerary 

 bones, 2, 206 j Eschricht on ascaris, 



2, 465. 



Oxalis : radial symmetry, 2, 137 ; foliar 



surface, g, 248. 

 Oxen and sheep, growth of,l, 128, 13 L 



Oxidation (see Oxygen). 



Oxygen : chemical and physical propel* 

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

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

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

 loid, 1, 21 ; combining power and 

 atomic weight, 1, 31 ; organic change 

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

 phosphorescence, 1, 46 ; nerve force 

 dependent on, 1, 50 ; necessary to 

 animal life, 1, 75-6 j amount inhaled, 

 1, 170. 



PAGET, SIB J., blood changes, from 

 disease, 1, 177, 484. 



Paleontology : distribution in time, l t 

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

 record congruous with evolution, l t 

 397-401, 472. 



Palmella : tissues, 2, 226 ; sexual genesisj 

 2, 429. 



Parasites : aberrant type forms, 1, 296 ; 

 distribution, 1, 313 ; special creation 

 and human, 1, 342, 354; retrograde 

 development, 1, 370 ; nutrition and 

 genesis in vegetal, 2, 463, 468 j in 

 animal, 2, 464-6, 468. 



Parthenogenesis : true and pseudo-, l t 

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

 of articulata, 2, 426. 



Peloria : in gloxinia, 2 t 151; phceno- 

 gams, 2, 163. 



Penguin, dermal structure, 2, 300. 



Persistence of force : properties of com 

 pounds, 1, 3 ; organic transformation, 

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

 organic energy, 1, 176 ; organic repair, 

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

 heredity, and variation, 1, 291; mor 

 phological summary, 2,&quot; 217 ; vegetal 

 tissue differentiation, 2, 227 ; physio 

 logical development, 2, 3S7. 



Petals: foliar homology, 2, 33-6 1 

 &quot;adnate,&quot; 2, 55. 



Petrels, Darwin on, 1, 368. 



Phanerogatnia (see Phsenogams). 



Phsenogams : uni- and multi-axial eym* 

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

 136; helical growth, #,164; tissue and 

 leaf differentiation, 2, 229-31, 379; 

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

 also outer tissue, 2, 285, 239-42, 253, 

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

 differentiation of inner tissues, #, 

 256-8, 381 i vascular system develop* 



