338 



INDEX 



Growth and origination compared, 142 ; 



discontinuous, 38, 291 ; in acid and 



neutral infusions, 150 

 Gun-cotton, 67 



Habitat, absence of fixity of, 303 



Harlequin Fly, 259 



Hay infusions. Ciliated Infusoria in, 230- 

 243 ; flask experiments with, 152 ; 

 how made, 183 



Hay, old, germs of, 149 



Haematoidin, crystals of, 70 



Haematococcus, variability of, 290 



Haemoglobin, formula of, 6g 



Heat, animal, 10, 293 



Heat, resistance to, of Bacilli spores, 

 149 



Helium produced from radium, 295 



Hereditary substance, 75 



Heredity, 73 ; cytoplasm as vehicle of, 

 84 ; doctrine of, 95 ; law of, 93 ; phe- 

 nomena of, 288 ; related to organic 

 polarity, 288 ; two schools concerning, 



74 



Heterogenesis and Archebiosis account 

 for existing lowest forms of life, 97, 

 98, 299 ; both repudiated by many, gS 



Heterogenesis, akin to isomerism, 289 ; 

 and mutation, relations of, 112 ; mis- 

 cellaneous examples of, 199-229 ; 

 nature of processes, 160 ; old denials 

 of, l6o ; positive evidence of, 291 



Heterogenetic changes in pellicle, 298 ; 

 in Nitella, 299 ; meaning of, 294 



Heterogenetic origin of Ciliated Infu- 

 soria, 230-285 ; of Bacteria and allies, 

 161-181 ; possible fallacies concerning, 

 161 ; in cells of potato, 173-17S ; in 

 spines of Cyclops, 165, 166 ; of mould 

 in cells of apple, 177 ; in orange, 179 



Heterogenetic transformations observed, 

 enumeration of, 296 



Higher animals, death in, 24 



Horns of Irish elk, 125 



Horse, trotting, evolution of, 126 



Hyaline cyst of Otostoma, 284 



Hydatina, black granule eggs of, 272 ; 

 resting eggs of, 271 



Hydatina egg transformed into an 

 Otostoma, 264-277 ; yielding many 

 Vorticellae or Oxytrichae, 277-285 



Idioplasm, inactive, 90 



Ids, 75, 102, lis, 289 ; contain multitudes 

 of determinants, 76 ; division of, 77 ; 

 nature of, 76 



Inactive idioplasm, go 



Indifferent corpuscles, 195 ; structure of, 

 196 



Infection of cells by Bacteria, 163 ; of 

 plants by mould, 163 



Infusions, acid and neutral, growth in, 

 150 ; discontinuous heating of, 147 ; of 

 hay, how made, 183 ; formation of 

 pelUcle on, 183 ; changes therein, 183 ; 

 Ciliated Infusoria in, 230-243 ; from 

 grass, dead some days, 242 



Infusoria, Ciliated, heterogenetic origins 

 of, 230-285 ; not in infusions of unripe 

 grasses, 230 ; or often from fresh grass, 

 242 



Inheritance, chromatin agent of, 82 



Inheritance of acquired characters, 117, 

 119, 123, 129 ; admitted, 132 ; of effects 

 of use and disuse, 122 ; of good 

 memory, 128 ; of gout, 128 ; of para- 

 sitic habit, 123 ; of paternal and mater- 

 nal traits, 82 



Inherited powers and speech, 129 



Injuries, repair of in plants, 89 



Instability of colloids, 65 



Intellectual actions, 13 



Invisible germs of microorganisms, 53 



Irish elk, horns of, 125 



Isomeric changes, 99 ; in protoplasm, 

 102, 289, 292 



Isomeric compounds, 286,289,292 ; modi- 

 iications numerous of protein com- 

 pounds, 6g 



Isomeric states of protoplasm, 71, 72 



Isomerism, g6 ; akin to heterogenesis, 

 289 ; of proteid compounds, 69, 292 



Joints, of Punjaub people, 127 



Karyokinesis, 40, 74, 83 ; phenomena of, 

 82 



Kieselguhr, filtration through, 157 ; stops 

 large organic molecules, 157 



Kidney, healthy, bacteria in, 169-171 



Kolpodae in hay infusions, 231, 233 ; 

 characters of, 233 ; embryo revolves 

 within cyst, 231 ; may undergo fission, 

 231 ; appearance of nucleus in, 232 ; 



