INDEX 



Acquired characters, inheritance of, 117, 

 iig, 123, 129, 132, 135 



Actinophrys, mode of nutrition of, 36 ; 

 origin of swarms of from Chlorophyll 

 corpuscles of Nitella, 224-228 



Adaptive changes in plants, 133 



Age of earth, 3 10 ; discordant views con- 

 cerning, 310-313 



Aggregates of Bacteria, 243 ; changes ini 

 243 



Albumen, formula of, 68 



Albuminates, formation of in plants, 17 



Albuminoids, 66, 69 



Albumins, 69 



Aleurone granules, 70 



Algse, Bacteria in cells of, 172 ; having 

 non-nucleated cells, 30 



Algoid parasite of Duckweed, 199 ; seg- 

 mentation of cells of, 200 ; fission 

 products vary in size, 201 ; association 

 of with young Diatoms, 201 ; inter- 

 pretation of presence of latter, 203-208 



AUotropic states, 62, 286 ; of oxygen, 62 ; 

 of sulphur, of phosphorus, and of some 

 metals, 63 



Ammoniacal solutions, growth of Bacteria 

 in, 18 



Ammonium tartrate solutions, growth of 

 Bacteria and Torulae therein, 34 



Ammonium tartrate, synthesis of, 142 



Amoebae, encysted, yielding Ciliated 

 Infusoria, 247-251 



Amoebae, mode of nutrition of, 36 ; 

 gorged with food, 37 ; origin of from 

 Chlorophyll corpuscles of Nitella, 214- 

 217 ; from discrete corpuscles, 194 ; 

 from pellicle on egg and water mix- 

 ture, 195 ; from resting-spores of 

 Spirogyra, 211 ; from resting-spores 

 of Vaucheria, 211 ; from substance of 



1 Euglense, 213 ; from Zoogloea masses, 



1 190 ; segmenting into Monads, 37 



Amoeboid origin of Ciliates from the 

 pellicle, 234, 240-243 



Amorphous precipitates, 44 



Amphioxus, how ancient a form, 313 

 experiments with ova of, 77 



Anabena, derived from Chlorochytrium 

 cells, 208 ; has no motile spores, 209 



Anableps, 124 



Ancient views concerning spontaneous 

 generation, 143 



Ancon sheep, 105 



AnguillulidcE, 247 



Animal heat, 10 



Animals and plants, relations of, 14, 15, 

 17 



Animals, higher, death of, 24 ; lower, 

 death of, 24 ; repair of injuries in, 89 



Ants, parasol, 125 



Apple, mould in cells of, 177 ; peculiar 

 changes in, 177, 181 



Archebiosis, 53 ; an ever-recurring pro- 

 cess, 97, 140 ; assumptions concerning, 

 151 ; attempts at experimental proof, 

 146 ; beyond ken of man, 159 ; condi- 

 tions of, 147 ; continuance of process, 

 145 ; difficulty of experimental proof, 



157 ; evidence from flask experiments, 



158 ; former arguments against, 154 ; 

 in free nature, 159 ; interpretation of 

 results, 146, 149 ; nature of products 

 of, 144 ; observational evidence con- 

 cerning, 158 ; steps of unknown, 141 ; 

 writer's experiments concerning, 147- 



IS9 

 Archebiosis and heterogenesis account 



for existing lowest forms of life, 97, 



299 ; ever-recurring processes, 97, 



140 

 Areas, Embryonal, 182 

 Arthropoda, formation of segments of, 



127 ; parthenogenesis among, 85 

 Artificial formation of cells, 6l 



333 



