CONTENTS. 



87. Social instinct of birds — The 

 republican. — 88. Habitation of 

 ■wasps. — 89. Formation of the 

 colony — Birth of neuters. — 90. 

 Males and females. — 91. Struc- 

 ture of the nest. — 92. Form and 

 structure of the comb. — 93. Pro- 

 cess of building the nest and con- 

 structing 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 en- 

 trance. — 98. Inferior animals not 

 devoid of intelligence. — 99. Ex- 

 amples of memory. — 100. Meniory 

 of the elephant — Anecdote. — 101. 

 Memory of fishes. — 102. Exam- 

 ples 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 observations. — 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 I 



ourang-outang — marks of his great 

 intelligence. 

 Chap. IV. — 108. Anecdotes of the 

 ourang-outang. — 109. Analogy 

 of the skeleton of the ourang- 

 outang to that of man. — 110. Of 

 the brain to the human brain . — 



111. Intelligence of the wolf. — 



112. Anecdote of the hawk, the 

 cat, the eagle. — 113. Of the dog. 

 —114. Of the bear.— 115. Intelli- 

 gence of animals decreases with 

 age. — 116. Man distiuguiahed 

 from other animals by the degree' 

 of intelligence. — 117. Lower ani- 

 mals are not endowed with reflec- 

 tion. — 118. Inferior animals have 

 methods of intercommunication as 

 a substitute for language. — 119. 

 Examples in the cases of marmots, 

 flamingoes, and swallows. — 120. 

 Intercommunication of ants. — 

 121. Example in their mutual 

 wars. — 122. Acts' which cannot 

 be explained either by instinct or 

 intelligence. — 123. Carrier - pi- 

 geons. — 124. Domesticity and 

 tamenees. 



