334 



INDEX 



Aspidisca, specimens of found with 



Hydatina eggs, 279 

 Aspidiscs, Vorticellae, and Oxytrichiae, 



genetic relations of, 281, 283 

 Assimilation, 33 ; and Enzymes, 36 ; in 



cytodes, 33 ; in unicellular organisms, 



33 



Bacilli, 35 ; spores, resistance of to 

 heat, 149 



Bacillus of tubercle, 323 ; of leprosy, 327 



Bacteria and Chemotaxis, 32 ; and allies, 

 heterogenetic origin of, i6i-i8i, 298 



Bacteria breed true, 57, 123 ; developing 

 from ultra-microscopic particles, 52 ; 

 different in same fluid, 57 ; destroyed 

 in blood stream, 171 ; from hetero- 

 genesis, motionless germs, 164; growth 

 of in ammoniacal solutions, 18 ; in 

 ammonic tartrate solution, 34 ; modes 

 of nutrition of, 35 ; infection by, pro- 

 cess of, 163 ; in pellicle, 184 ; in some 

 organs of healthy animals, 166 ; nitri- 

 fyingi 34 ; that infect, are active adults, 

 164 ; thermal death-point of, 151 ; 

 views of naturalists concerning, 316 ; 

 yielded by flask experiments, 153 



Bacteria, heterogenetic origin of in cells 

 of potato, 173-175 ; in cells of turnip, 

 176 ; in kidney, 169-171 ; in spine of 

 Cyclops, 165 ; in cells of Algae, and 

 of Nitella, 172 



Basis, physical, of life, 59, 71, 72 



Bastard larvas, 85 



Bee, queen, production of, 125 



Berkfeld filters, experiments with, 155 ; 

 large colloid molecules stopped by, 157 



Betol, crystals of, 48 



Biogens, 75, 93 



Biophors, 81, 116 ; the constituents of 

 determinants, 78 ; specific qualities of, 

 79 



Blastogenic characters, 130 ; changes, 

 causes of, 131 



Blastomeres, equipotential, 77, 95 



Boy-calculator, 128 



Breeders, views of, 134 



Buds, reproduction by, 102 



Bud-variation, 106, 136 



Butterfly pupae, and heritable characters, 

 131 ; cocoons of, varying colour of, 132 



Calculating boy, 128 



Callidinae, origin of Ciliates from eggs of, 



252 

 Cancer cells, 87 ; processes in, 88 

 Cancerous growth and prothallial tissue, 



88 

 Carbohydrates, 70 

 Carbon, 67 ; allotropic states of, 62 

 Carrot, wild, change of, 133 

 Catalysis, 36 

 Cell, a product of evolution, 29 ; as 



ultimate unit, 27 ; division of, ordinary, 



82 ; doctrines of Virchow concerning, 



27 ; nature of, 27 ; nucleus of, 29 

 Cells, 74 ; artificial formation of, 61 ; of 



Algae, Bacteria in, 172 ; of cancer, 87 ; 



processes in, 88 ; germ, origin of, 80 ; 



secreting, nuclei of, 84 ; somatic, 79, 



89 ; sperm, origin of, 80 

 Centrosome, as directing agent, 74 

 Chamberland filters, experiments with, 



155 ; large colloid molecules stopped 



by, IS7 



Change of conditions and complex 

 organisms, 293 



Change, rate of in lower organisms, 

 290, 312 



Characters of vertebrate skeleton, 127 



Chemotactic substances, 33 



Chemotaxis and Bacteria, 32 



Chemotaxis and infection, 206 



Chemotaxis, negative, 33 



Children, Chinese, memory of, 128 ; 

 Mohammedan, 129 



Chilodons in hay infusions, 233 ; filtra- 

 tion adequate to exclude, 234 



Chilodons from encysted Euglenae, 247 



Chimera, spontaneous generation, said 

 to be, 147, 158 



Chinese children, memory of, 128 



Chlamydococcus, variability of, 289 



Chlamydomonas, variability of, 290 



Chlorochytrium cells parasitic in Duck- 

 weed, 199 ; segmentation of, 200 ; some 

 of the cells transformed into Diatoms 

 203-208 ; others into Anabena, 208 



Chlorophyll corpuscles, fission of, 74 ; 

 transformation of in Lemna into 

 Anabena, 210 ; in Nitella into Actino- 

 phrys, 224-228 ; and into Amoebae, 

 214-217 



