vi CONTENTS. 



PAGE 



CHAP. II. 36. Migration of the lemmings. 37. Vast migration of 

 field-mice of Kamtschatka. 38. Instincts conservative of species 

 stronger than those conservative of individuals. 39, 40. Instincts 

 of insects for the preservation of their posthumous offspring. 41, 

 42. Transformations of insects Precautions in the depositions of 

 eggs. 43. Habitation constructed by the liparis chrysorrhea for 

 its young. 44. Examples mentioned by Reaumur and Degeer. 

 45. Expedients for the exclusion of light from the young. 46. 

 Example of the common white butterfly. 47. Manoeuvres of the 

 gadfly to get its eggs into?the horse's stomach. 48. The ichneu- 

 mon. 49. Its use in preventing the undue multiplication of 

 certain species. 50. Its form and habits. 51. The nourishment 

 of its larvae. 52. The sexton beetle. 53. Their processes in 

 burying carcasses. 54. Anecdote of them related by Strauss. 

 55. Singular anecdote of the gymnopleurus pilularius. 56. Such 

 acts indicate reasoning. 57. Anecdote of a sphex told by Darwin. 

 58. Indications of intelligence insthis case. 59. Anecdote of a 

 sexton beetle related by Grleditsch. 60. Indications of reason in 

 this case. 61. Anecdote of ants related by Reaumur. 62. 

 Anecdote of ants related by Dr. Franklin. 63. Anecdote of the 

 bee related by Mr. Wailes. 64. Anecdote of the humble bee by 

 Huber. 65. Memory of insects. 66. Recognition of home by 

 the bee. 67. Singular conduct of the queen. 68. Rogers' s lines 

 en this subject. 69. Error of the poet. 70. Anecdote of bees 

 by Mr. Stickney. 71. Instinct of the pompilides. 72. The 

 carpenter bee ......... 129 



CHAP. III. 73. Habitations for the young provided more frequently 

 than for the adults. 74. Birds' nests. 75. Nest of the baya. 

 76. Nest of the silvia sutoria. 77. Anti-social instinct of 

 carnivorous animals. 78. Their occasional association for pre- 

 daceous excursions. 79. Assemblies of migratory animals. 

 80. Example of the migratory pigeons of America. 81. The 

 beaver. 82. Their habitations. 83. Process of building their 

 villages. 84. These acts all instinctive. 85. Low degree of 

 intelligence of the beaver. 86. Method of catching the animal. 

 87. Social instinct of birds The republican. 88. Habitation 

 of wasps. 89. Formation of the colony Birth of neuters. 

 90. Males and females. 91. Structure of the nest. 92. Form 

 and structure of the comb. 93. Process of building the nest and 

 constructing the combs. 94. Division of labour among the 

 society. 95. Number and appropriation of the cells. 96. Doors 

 of exit and entrance. 97. Avenue to the entrance. 98. Infe- 

 rior animals not devoid of intelligence. 99. Examples of 

 memory. 100. Memory of the elephant Anecdote. 101. Me- 

 mory of fishes. 102. Examples of reasoning in the dog. 

 103. Singular anecdote of a watch-dog. 104. Low degree of 

 intelligence of rodents and ruminants proved by Cuvier's obser- 

 vations. 105. Intelligence of the pachydermata the elephant 

 the horse the pig the pecari the wild boar. 106. The 

 quadrumana. 107. Cuvier's observations on the ourang-outang 

 marks of his great intelligence . . . . . . 145 



