xviii ANIMAL LIFE 



PAGE 



28. Tin- i \vi NKWT (Proteus anguincus) i;j 



29. THE DEVELOPMENT OF COLOUR-PATTERN IN ////>/> >/yfc . 172 



30. FEMALE ORANGE-TIP BUTTERFLY. SHOWING SYMPA- 



II! I IK CoiorKATION 1/9 



HEN PARTRIDGE AND YOUNG 182 



M K \K(.I s PHEASANT DISPLAYING HIS PLUMAGE . 194 



33. Tin. Kt i i IN MATING PLUMAGE 195 



34. BLACK COCK DISPLAYING BEFORE THE GREY-HEN. . 196 



35. TRANSFORMATION OF A SEA-WORM (Nereis) . . . 200 



36. THE PALOLO-WORM OF SAMOA 202 



37. EGGS OF HERRING 203 



38. EGGS OF CUTTLE-FISH (Sepia) 204 



39. SAND-MARTIN AND YOUNG 207 



40. SWALLOW, NEST AND YOUNG 208 



41. NEST OF LITTLE TERN 209 



42. NEST OF SKYLARK 211 



43. NEST OF LONG-TAILED TIT-MOUSE 213 



44. CUCKOO IN NEST OF TITLARK 214 



45. HARVEST-MOUSE AND NEST 215 



46. SOME PRIMITIVE INSECTS 223 



47. THE DEVELOPMENT OF THE GRASSHOPPER . . . . 225 



48. LlFE-HlSTORY OF THE DRAGON-FLY .... 229 



49. SKIPJACK BEETLES AND LARVA (WIREWORM) . . . 239 



50. LlFE-HlSTORY OF CABBAGE-WHITE BUTTERFLY . . 243 



51. THE HOUSE-FLY 247 



52. LARVA OF GNAT 250 



53. PUPA OF GNAT 251 



54. NEST OF COMMON WASP 277 



55. LEAF-CUTTER BEE 278 



56. EVOLUTION OF THE TONGUES OF BEES .... 280 



57. ADAPTIVE STRUCTURES OF THE LEGS OF THE HIVE- 



BEE 281 



58. HIND-LEGS OF SOLITARY BEES 282 



59. BURROW OF LEAF-CUTTER BEE 283 



60. BURROW OF SOLITARY BEE (Andrena) .... 284 



61. NEST OF BUMBLE BEE 287 



62. WORKER-CELLS FROM BEE-COMB 295 



