276 THE EVOLUTION OF CONTINUITY 



Discontinuity, 19 ; after death, 36 ; 

 independence due to, 39 ; cellular, 

 and gamete-formation, 44 ; price 

 of, 151 



Disoontinuously Multicellular Indi- 

 vidual, 39 ; definition, 42 



Disoontinuously Zooidal Individual, 

 70 



Drone, 38 



Dyaster, 249 



E 



Earth, its crust and strata, 158 ; its 

 evolution, 207 



Earthworm, 114 



Echinodermata, 107; larvae of, 110 



Ectoderm, 71, 85, 95, 98 



Electrons, 28, 29, 32, 206 



Endoderm, 71, 85, 98 



Energy, 26 



Environment, general, 49 ; basic 

 varieties, 50, 51 ; as physical 

 force in relation to Continuity, 

 51, 52, 87 ; Environment and 

 Variation, 140 ; as segregator, 

 167 ; as originator of species, 

 154, 214 



Equilibrium, and Nature, 26 ; of 

 inorganic matter, 28 ; of dead 

 matter, 31 ; physical, of Fish, 

 229 ; of personality, 269 



Eurotium, 63 



Evolution, of living Individual, 37 ; 

 of somatic tissue, 37 ; main road 

 of, 59, 76, 150, 202; evolution 

 of sexual structure in zooidal 

 colonies, 92 ; gaps in chain of 

 evolution, 151, 203 



False tissue, 63 ; in Eurotium, 64 



Ferns, 171 



Fertilisation, non-specific, 246 



Filamentous Individual, 49 



Fish, evolution of, 181 ; circulation 

 of, 183 ; nervous system of, 185 ; 

 alimentary tract of, 186 ; mouth 

 and gill formation, 187 ; respira- 

 tory system, 188 ; symmetry of, 

 227 ; fins, 230 



Fishes, 159 



Flounder, 228 



Flowering plants, and arrest, 78 

 Food-attraction, 218, 221, 229 

 Frog, puncture of unfertilised ovum, 



48, 246 

 Fungi, 59 



G 



Gametes, of malarial amoeba, 44 ; 

 of lower bacteria, 69 



Gametangium, 58 



Gametophyte, 57, 58 



Ganglia, 115 ; ganglionic nerve cells, 

 85 



Gaskell's theory, 191, 194 



Gemmation, zooidal, 71, 78, 80 



Geometrical progression and growth- 

 cycle, 40 ; in haemamoeba, 46 



Gonoblastidium, 93 



Gonophores, 91 ; medusiform, 94, 

 166 



Gravity, its evolutionary action, 161 ; 

 as factor in Symmetry, 219 



Growth, 25, 35 



Gymnosperms, 169 ; the cone, 173 



Hsemamosba of malaria, 42, 43 ; size 



of Individual, 45 

 Healing of wounds, 269 

 Heredity, 133 

 Honey-bee, 113 

 Hydra, 39, 71 

 Hydra-tuba, 103 

 Hydrozoa, 74, 80, 104, 159, 163, 



172 

 Hyphas, 60 



Incomplete septa, 86 



Individual, the, 38 ; size of living, 45 



Intercalation in Spirogyra, 55 



In termesenteric chambers, 85, 89, 101 



Involution forms, 68 



Jelly-fish, 81, 91, 95 

 Jelly tissue, 98, 108 



