2 
Physiology =351 1-4811 : — 
General 
Parthenogenesis, Longevity 
Sex. . 
Cycles of generations 
Hermaphroditism . . 
Senses 
Particular functions 
Metabolic 
Respiration,* Alimentary (vacant) 
Pigment, colour . . 
Environmental 
Chemical . . 
PAGE 
143 
143 
144 
144 
144 
144 
145 
145 
145 
145 
145 
Development = 35 15-4815 : — 
General . . . . . . . . . . . . . . 145 
Regeneration . . . . . . . . . . . . 145 
Oogenesis, Spermatogenesis . . . . . . . . 14G 
Fertilisation . . . . . . . . . . . . 14G 
Embryology .. .. .. .. .. .. 14G 
Postembryology, Metamorphosis 147 
Ethology =351 9-4819 
General . . . . . . . . . . . . . . 148 
Ant-life . . . . . . . . . . . . . . 148 
Bee-life 149 
Wasp-life.. .. .. .. .. .. .. 150 
Termite-life . . . . . . . . . . . . 150 
Cavernicolous . . . . . . . . . . . . 150 
Aquatic . . . . . . . . . . . . . . 150 
Gregariousness . . . . . . . . . . . . 150 
Migration, flight . . . . . . . . . . . . 150 
Sound-production.. .. .. .. .. ..150 
Food-habits . . . . . . . . . . . . 151 
Parasitic, Symbiosis .. .. .. .. ..151 
Nests, Habitat . . . . . . . . . . . . 152 
Sex-relations .. .. .. .. .. ..152 
Ovi position and parental. . . . . . . . . . 152 
Hibernation . . . . . . . . . . . . 152 
Phenology. . . . . . . . . . . . . . 152 
Instinct and psychology . . . . . . . . . . 153 
Attitudes . . . . . . . . . . . . . . 154 
Luminosity . . . . . . . . . . . . 154 
Resemblance and utility . . . . . . . . . . 153 
Natural history, special cases . . . . . . . . 154 
Pupal habits, cocoons . . . . . . . . . . 154 
Insects and plants . . . . . . . . . . 154 
Galls . . . . . . . . . . . . . . 154 
