342 



INDEX 



Polyraerism of proteid molecule, 65 

 Potato, origin of Bacteria in cells of, 173- 



175 



Predominant forms of Life, 308 



Present-day existence of lower organ- 

 isms, explained, 299 



Primary constituents, 76 



Primary germ cell, origin of, 80 ; sperm 

 cell, origin of, 80 



Primordial forms of life, 145 



Primrose, evening, 108 



Production of Queen Bee, 125 



Proligerous pellicle, 182 



Proof, experimental, attempted of Arche- 

 biosis, 146 



Properties, and molecular composition, 

 62 ; dependent upon molecular collo- 

 cation, 22 ; of cytodes, 30 ; of living 

 bodies, 21 ; of living matter, 73 ; of 

 living units, 30, 38 ; of protoplasm, 

 22 



Prorodons, encysted, into Peranemata, 

 219-221 



Proteid compounds, constituents of, 66 ; 

 isomerism of, 68 



Proteid molecule, great size of, 65 ; is 

 polymeric, 65 



Protein, isomeric modifications of, 69 



Prothalial tissue and cancerous growth, 

 88 



Prothalium of ferns, 88 



Protista, 26 



Protococcus, great variability of, 290 



Protoplasm, characters of, 71 ; constitu- 

 tion of, 71 ; influence of, in growth, 

 20 ; isomeric states of, 71, 72 ; no ten- 

 dency to vary, 97 ; pre-existing, influ- 

 ence of, 61 ; properties of, 22 ; the 

 physical basis of life, 72 



Psychoda, 258 



Ptyalin, 70 



Pulmonary phthisis, its origin and spread 

 by contagion, 322-327 



Punjaub people, joints of, 127 



Pupae of Butterfly and heritable charac- 

 ters, 131 



Queen Bee, production of, 125 



Radiobes, 61 



Radish, modification of, 133 



Radium, yielding Helium, 295 



Rapidity of organic evolution, 137 



Rate of change in lower organisms, 290, 

 312 



Recurrence in time of similar organic 

 forms, 287 



Reducing divisions, 85-87 



Regeneration, and influence of nucleus, 

 41 ; a primary property, 95 ; as an ac- 

 quired capacity, 90 ; inherent ten- 

 dency thereto, 91 ; limited in higher 

 animals, 93 ; not so in plants, 98 



Repair of broken crystal, 287 ; of in- 

 juries, great in some lower animals, 

 89 ; and in plants, 89 



Reproduction, in cytodes, 38 ; by buds 

 and cuttings, in plants, 102 



Reproductive units of Moulds, 59 



Resting-spore of Spirogyra, yielding 

 Amoebae, 211 ; of Vaucheria, yielding 

 Amoebae, 212 



Resuscitation of germs, 149 



Rose, moss-, origin of, 107 



Rotifers, eggs of, yielding Ciliates, 263- 

 285 ; no fixity of habitat, 306 



Rudimentary limbs of whale, 126 



Salol, crystals of, 48 



Sarcode theory, 71 



Scarlet fever and diphtheria, 380 



Seasonal dimorphism, 113 



Sea-urchin, ova of, 77 



Secondary sexual characters, 119 



Secreting cells, nuclei of, 84 



Sections of Stentor, 41 



Sections of unicellular organisms, 40, 83 

 non-repair when nucleus absent, 40 



Segments of Arthropoda, 127 



Selection, sexual, 117 



Sensation and nerve centres, 14 



Sensitivity of finger-tips, 127 ; of tongue, 

 127 



Septicemia, de novo origin of, 318 ; ex- 

 perimental forms of, 316-320 



Sexual secondary characters, 119 ; selec- 

 tion, 117 



Sheep, Ancon, 105 



Shells of Gasteropods, 123 



Simplest organisms, forms of, 43 



Skeleton of vertebrates, characters of 

 127 



