340 



INDEX 



Nassul^, from encysted Euglenae, 245- 

 247 



Natural Selection, action of, 129 ; doctrine 

 of, 103, III ; influence of , 75 ; no direct 

 evidence of, 293 ; objections to, 103 ; 

 slowness of process, 112, 137 



Nature of cell, 27 ; of chromosomes, 75 ; 

 of germ and sperm cells, 94 ; of 

 cytodes, 27 



Naviculae, with algoid cells in duckweed, 

 201 



Nectarines from peach trees, 107 ; from 

 stones of peach, 108 



Nematoids in lichen, 247 



Neo-Lamarckism, 102 



Nervous phenomena, 13 ; system, func- 

 tions of, 23 



Network of chromatin granules, 81, 83 



New-born living matter, 55 ; forms 

 assumed by, 55 



Nitella, Chlorophyll corpuscles of into 

 Amoebae, 214-217 ; into Actinophrys, 

 224-228 ; heterogenetic changes in, 

 299 ; Otostoma in cells of, 37 



Nitrogen, characteristics of, 67 



Nitrogenous compounds, 68 



Nitzschiae, with algoid cells, in Duckweed, 

 201 



Non-nucleated units, fission of, 74 



Not-living matter, fission of, 42 



Nucleic acid, 82 



Nuclei, fusion of, 89 ; of secreting cells, 84 



Nucleus and processes of fission, 39 ; 

 absent in some Algae, 30 ; acts like a 

 chemical substance in regeneration, 41 ; 

 complex composition of, 40 ; divides 

 before cytoplasm, 39 ; functions of, 

 40 ; influence of, 30 ; mode of appear- 

 ance of, 29 ; of embryo Ciliate very 

 large, 260 ; source of molecular dis- 

 turbance, 41 ; views concerning, 74 



Nutrition, of Amoebae, 36 ; of Actino- 

 phrys, 36 ; of Bacteria, modes of, 35 ; 

 of Ciliated Infusoria, 36 ; of Chroma- 

 cea, 35 ; of Conferva, 17 ; of Muce- 

 dineae, 17 ; of plants, 15 ; of tissue 

 elements, 35; simple, of nitrifying Bac- 

 teria and others, 34 



(Enothera, 108 



Oranges, mould in centre of, 179 



Organic particles in air, 54 ; compounds, 

 varieties of, 66 ; synthesis of, 66 



Organic polarity, 92, 99, loi, 113, 291 ; 

 as cause of simple living forms, 98 ; 

 as cause of symmetry, 100 



Organisms and crystals, 43 



Organisms are dynamical aggregates, 

 287 ; simplest forms of, 43 ; unicellular, 

 26 ; sections of, 40 



Origination and growth compared, 142 



Origin, modes of, of Typhoid Fever, 

 320-322 ; of crystals and of organisms, 

 de novo, 47 ; of primary germ cell, 80 ; 

 of species, 73 



Origin, heterogenetic, of Actinophrys 

 from Chlorophyll corpuscles of Nitella, 

 224-228 



Origin, heterogenetic, of Amoebae from 

 Chlorophyll corpuscles of Nitella, 214- 

 217 ; from discrete corpuscles of pelli- 

 cle, 192 ; from Euglenae, 213 ; from 

 resting-spores of Spirogyra, 211 ; from 

 resting-spores of Vaucheria, 212 ; 

 from Zoogloea masses, 187-192 



Origin, heterogenetic, of Anabena, from 

 Chlorochytrium cells in Lemna, 208 ; 

 from Chlorophyll corpuscles of 

 Lemna, 210 



Origin, heterogenetic, of Bacteria and 

 their allies, 161-181 ; in cells of potato, 

 173-175 ; in cells of turnip, 176 ; in 

 kidney, 169-171 ; in spine of Cyclops, 



16S 



Origin, heterogenetic, of Ciliated In- 

 fusoria, 230-285 ; from eggs of a Gnat- 

 like fly, 258-262 ; from eggs of a 

 Rotifer, 263-285 ; from eggs of a 

 Tardigrade, 251-257 ; from encysted 

 Amoebae, 247-251 ; from encysted 

 Euglenae, 243-247 ; from Zoogloea in 

 pellicle (direct and amaeboid origins), 

 230-243 ; general considerations con- 

 cerning origin in infusions, 238-243 



Origin, heterogenetic, of Diatoms from 

 cells of Chlorochytrium in Duckweeds, 

 201-208 



Origin, heterogenetic, of Fungus-germs 

 from discrete corpuscles in pellicle-, 

 192, 196 ; from Zooglosa masses in 

 pellicle, 187-192 



Origin, heterogenetic, of Monads from 



