LIST OF ILLUSTRATIONS 



XXIU 



al size) 



138. The caterpillar's many-hooked foot 



139. Portion of wing of May-fljf . 



140. Larva of May-fly . 



141. Exuvium of May-fly 



142. Final emergence of May-fly . 



143. May-fly (natural size) 



144. An alder-fly .... 



145. Eggs of alder-fly . 



146. Larva of alder-fly . 



147. A caddis-fly .... 



148. A caddis-worm 



149. Specimens of caddis-cases (natur 



150. End of body of caddis-larva . 



151. A dragon-fly (natural size) . 



152. Larva of dragonfly 



153. Head of the larva of a dragon-fly 



154. Tips of wings of dragon-fly . 



155. The face of a dragon-fly 



156. Palate of edible snail . 



157. Teeth of edible snail 



158. Palate of snail showing different form 



159. Palate of slug 



160. Proboscis of blow-fl}' 



161. Proboscis of liover-fly 



162. Tongue of a butterfly 



163. Tongue of stag-beetle 



164. Scales or dust from wing of moth 



165. Scales on butterfly's wing, in situ 



166. Hairs of "woolly-bear " caterpillar 



167. Hairs of a humble-bee 



168. Leg of a tiger-moth 



169. Skin of dog-fish 



170. Skin of sole 



171. Skin of eel 

 173. Scale removed from eel-skin 



173. Scale removed from gold-fish 



174. Feather of humming-bird 



oft 



eeth 



206 



2tO 

 212 

 214 

 2l5 



218 

 219 



220 

 221 

 222 

 = 23 

 224 

 226 

 227 

 228 

 230 

 231 

 232 

 235 

 236 



237 

 238 



239 



240 



241 

 242 



245 

 246 



247 

 248 



249 

 250 



251 

 252 



253 

 254 

 255 



