INDEX 



335 



Chromacea, 28 ; nutrition of, 29, 35 



Chromatin as agent of inheritance, 82 ; 

 as source of energy, 83 ; chemical 

 composition of, 82 ; granules, 75, 76, 

 8 1 ; network of, 81, 83 



Chromosomes, division of, 81 ; nature of, 

 75, 76 ; number of variable, 76 



Ciliated Infusoria, heterogenetic origins 

 of, 230-285 ; from pellicle, direct 

 origin, 234, and amoeboid origin, 

 234-237 ; from encysted Euglenae, 

 243-247 ; from eggs of a Tardigrade, 

 251-257 ; from the eggs of a gnat-like 

 Fly, 258-262 ; from the eggs of a 

 Rotifer, 263-285 ; mode of nutrition 

 of, 36 



Ciliate matrices, primary, 231, 234 



Ciliates, cysts of, 231, 235-237, 239 ; dura- 

 tion of encystment of, 284 ; fission of, 

 238 ; no spores or germs of, 238 ; some 

 forms of convertible, 281 



Colloids and crystalloids, 70 ; converti- 

 bility of, 64, 70 ; relations of, 64 



Colloids, composition of, 64 ; convertible 

 into crystalloids, 64 ; from ammoniacal 

 solutions, 71 ; inertness of, 64 ; in- 

 stability of, 65 



Common and pathogenic micro- 

 organisms, 316 ; convertibility of, 319, 



324, 330 



Complex composition of nucleus, 40 



Complex organisms, less influenced by 

 change in conditions, 293 



Conditions influencing crystallisation, 

 48-50 



Conditions, external, change of, 122 



Conferva, nutrition of, 17 



Congruity of evidence for hetero- 

 genesis, 296-314 



Consciousness, 13 ; states of, 14 



Contact action, 36 



Contagion overrated, and genesis under- 

 rated, 327 



Contagious diseases, supposed to be 

 propagated only, 315 ; their de novo 

 origin probable, 315-331 ; relation of 

 to putrefactive organisms, 331 ; import- 

 ance of ascertaining their modes of 

 origin, 331 



Continuity of germ plasm, 79, 80, 89, 90, 

 iiSi 120 



Continuity, law of, 138, 303, 305, 314 



Contractility of muscle, ii 



Corpuscles, discrete, production of in 



pellicle, 192, 239 

 Correlated variability, 114 

 Correlation of vital and physical forces, 



9,59 



Correlations, physiological, 119 



Convertibility of many lower forms of 

 life, 228 ; of some Ciliated Infusoria, 

 281 ; of heterogenetic products, 297 ; 

 doctrine of determinants opposed 

 thereto, 229 ; that of organic polarity 

 favourable, 229 ; comparable with 

 convertibility of crystalline forms, 229 



Convertibility of crystalline forms, 44- 

 47, 62 



Crustacea, parthenogenesis of, 85 



Crystal, broken, repair of, 287 



Crystalline forms, variability of, 44 ; 

 convertible, 229 



Crystallisation, conditions influencing, 

 48-50 ; favoured by dialysis, 44 



Crystalloids and colloids, 70 ; converti- 

 bility of, 70 



Crystals and organisms, 43 



Crystals, can they arise de novo, 47 ; 

 dimorphism of, 44 ; forming in viscid 

 solutions, 50 ; forms of, 43 ; germ 

 theory of, 50 ; modified, 50 ; of betol, 

 48 ; of hsematoidin, 70 ; of salol, 

 48 ; spontaneous generation of, 49 ; 

 varying with temperature, 45; in 

 colour from friction, 46 ; transforma- 

 tions of, 283 ; under different con- 

 ditions, 46 



Cyanic acid, a semi-living molecule, 141 



Cyanogen, 64, 141 



Cyclops, heterogenetic origin of Bacteria 

 in, 165 



Cyst, hyaline, of Otostoma, 284 



Cysts of CiUates, 231, 235-237, 239, 284 



Cytodes, 28 ; nature of, 28 ; properties 

 of, 30 ; reproduction of, 38 ; are the 

 elementary vital units, 29 



Cytology, 73 



Death in higher animals, 24 ; in lower 



animals, 24 

 Death, modes of, 23 ; of tissue elements, 



24 



