Index. 



239 



R. 



Kabbit, Breeds of, 148. 149 ; The 



wild, 141. 



Bamutonliu ficaria, 4, 5. 

 Recent changes, 76. 

 Receptacle of flower swollen to form 



fruit, 38. 

 Red ant, The, 155 ; -backed shrike, 



55 ; gravel of post-tertiary age, 190 ; 



hawthorn, 28 ; -wing, The, 185. 

 Reed, The, 230 ; -warbler, 184, 195. 

 Reflex action, 161. 

 Reindeer (fossil), The, 190 ; in 



France, 192. 



Reproduction of fern, 109. 

 Reptiles, The age of, 189. 

 Resemblance to surroundings of 



Grayling butterfly, 154 ; of lizard, 



178 ; of moths, 80, 112, 113 ; of 



moth to grasshopper, 152. 

 Respiration in fishes, 221 ; in insects, 



221 ; in mammals, 219 ; in newt, 



18 ; in tadpole, 217; in toad, 218, 



220. 

 Response to environment, 82, 112, 



113, 149, 150. 

 Retitelariae, The, 13. 

 Reversion, 148. 

 Rhinoceros (fossil), The, 119. 

 Rhododendron, The, 54. 

 Ring ouzel, The, 52, 185. 

 River, Denudation by, 118, 193 ; 



gravels, 119, 187. 

 Robin, The, 50. 



Rooks as insectivorous birds, 123. 

 Rosa canina, 38 ; spinosissima, 37 ; 



tomentosa, 3~- 

 Roses, 36 ; Burnet, 3G, 37 ; dog-, 38 ; 



hips of, 38 ; kinds of, 36. 

 Royal jelly, 132. 



Sallow called " palm," 209. 



Sanderliner, The, 185. 



Saturn, 71. 



Saxifrage (Saxifraija aizo'ides), 86. 



Scent, ride Odour. 



Schist, 87. 



Scuirus vulgaris, 64. 



Secondary rocks, 188. 



Secretion by uphides, 168 ; by skin 



of frog and toad, 224. 

 Sedge Warbler, The, 183, 195, 230. 

 Sedimentary rocks, 187. 



Selection by man, 147,166; of suitable 

 spots for protection by moths, 161. 



Sense of smell in butterfly, 44, 47 - t 

 of sight in butterfly imperfect, 44, 

 47- 



Sexual differences in ants, 156 ; 

 bees, 131 ; Chalk-hill Blue butter- 

 fly, 126 ; Common Blue butterfly, 

 122; newts, 17; Stag beetle, 227. 

 i Shamrock, The, 179. 

 | Shell-building of oyster, 195 ; of 



sea animals, 194 ; of snails, 145. 

 I Silurian rocks, 188. 

 ! Similarity of resting Grayling butter- 

 fly to pebbles, 154. 

 i Simple flowers most ancient, 40. 

 . Siskin, The, 185. 



I Six hundred feet through the chalk, 

 119. 



Skin as a respiratory organ, The, 



221. 



I Slave ants, 166 ; -making by ants, 

 167 ; -making instinct in ants, 

 The origin of, 168. 



| Small Copper butterfly, 122, 126; 

 Ermine moth (Hyponomeuta pa- 

 della), 50; Heath butterfly, 125; 

 White butterfly, 44. 



Smut, 26. 



Snails, Homing of, 162. 



Snakes enemies of lizards, 177. 



Snow-bunting, The, 185. 



Social system of ants, The, 159. 



Song-thrush, The, 31. 



Sorbinose, 102. [204. 



Sphinx liguslri, 205; -like attitude, 



Spiders, 8; aerial, 11; alimentary 

 canal of, 14 ; anatomy of, 12 ; as 

 weather indicators, 12 ; compared 

 with insects, 12 ; eyes of, 15 ; 

 gossamer, 11 ; intelligence of, 163 ; 

 spinnerets, 13. 



Spinning of spider's web instruc- 

 tive, 161. 



Spiracles of caterpillar, 204. 



Spores of fern, 109 ; of Peronospoia, 

 135. 



Squirrel, The, 63 ; as poachers, 65 ; 

 food of, 65 ; nest of, 64. 



Stag beetle, The, 227. 



Stalagmite, 189. 



Stamens changed into petals, 39, 40. 



Staminate flowers of hop, 116, 128 ; 

 of mistletoe, 27 ; of oak, 61 ; of 

 willow, 208. 



