Index. 



145, 146 ; growth of shell of, 145 ; 



variation of nemoralis, 147. 

 Heracleum sphondylium, 128. 

 Heredity, 151, 161. 

 Heron, The, 184, 195, 214. 

 Heronry, A, 66. 

 Herring gull, The, 186. 

 High Brown Fritillary, 140. 

 Hippopotamus (fossil), The, 190. 

 Hips of rose, The, 38. 

 Hirundo rustica, 126. 

 Historical associations of oak, 60. 

 Home of otter, 226. 

 Homing of limpets and snails, 162. 

 Honey and heather, 97 ; -dew, 168 ; 



-suckle, 36, 181, 230 ; -suckle, scent 



of, 42. 



Honey buzzard, The, 49. 

 Honeydew excreted by aphides, 168. 

 Hooded crow, The, 185. 

 Hooks to prolegs of caterpillar, 204. 

 Hops, 116, 128. 



Huber's experiments on ants, 167. 

 Human skulls of post-tertiary age, 



192. 



Humulus lupulus, 116. 

 Hyacinthus, 34. 

 Hybernation, 65 ; of butterflies and 



moths, 65 ; of lizard, 177 ; of 



newt, 22; of polar bear, 65; of 



squirrel, 66 ; of toad, 223. 

 Hymenoptera, 156 ; characters of, 



156. 



Igneous rocks, 187- 



Ignorance relating to birds, 134 ; the 



newt, 22; the lizard, 178; the 



toad, 224. 



Ilithyia carnella, 152. 

 Importance of accurate knowledge of 



insect life, 123. 

 Inconspicuous flowers generally 



strongly scented, 46. 

 Infinitesimal beginnings, 62. 

 Inflorescence of umbelliferous plants, 



128. 



Influence of heredity, 149. 

 Insect fertilisation of flowers, 40, 46, 



47. 

 Insectivorous birds, 50, 51, 123, 125, 



134. 

 Instinct defined, 160 ; of butterflies 



and moths, 161 ; of caterpillar, 



161 ; of limpet, 162 ; in ants of 



slave-making, 168; of spider, 161 ;. 

 of young cuckoo, 161. 



Intelligence defined, 160 ; of ants, 

 159, 166, 169 ; of bees, 171, 172 ;. 

 of chaffinch, 163 ; of do^s, 166 ; 

 of fleas, 163 ; increased by train- 

 ing, 163 ; of spider, 163 ; of wasp,. 

 162. 



Invagination of flagella of Puss moth, 

 caterpillar, 207. 



Involute vernation in violet, 6. 



Iodine obtained from seaweed, 211. 



Ireland, Different plants called sham- 

 rock in, 180. 



Iris, The, 198 ; pseudacorus, 197. 



Irish elk, The, 190. 



Iron agp, The, 189. 



Irritant excretions from caterpillar,. 

 207. 



J. 



Jupiter, 71- 



K. 



Kingfisher, 194, 195, 214. 

 Kitten moth caterpillars, 206. 



L. 



Lacerta vivipara, 176. 



Ladybirds prey on aphides, 123. 



Lanius collurio, 56. 



Larch tree, The, 78; attacked by 

 moth, 155. 



Larvae of Eyed Hawk moth, 203; 

 of Goat moth, 229 ; of Puss moth, 

 206; of Stag beetle, 228; of Tur- 

 nip moth, 123; Twin-spot Wain- 

 scot moth, 225. 



Lasius flavus, 169 ; L. niger, 169. 



Late leafing of oak and ash, 32. 



Lemna, 211. 



Lepus caniculus, 141. 



Lesser black-backed gull, 186 ; black- 

 beaded gull, 185 ; celandine, 3,4; 

 yellow trefoil, 179. 



Lesson on shells, 145. 



Lias rocks, 188. 



Lite history of aphides, 168; bee, 

 130; dragonfly, 201; lizard, 175, 

 177 ; newt, 17 ; otter, 225 ; Perono- 

 spora, 135; Pulex irritans, 214; 

 Stag beetle, 228 ; stickleback, 200 ; 

 toad, 215 ; Twin-spotted Wainscot 

 moth, 225; Wood Leopard moth,. 

 229. 



