| Letter | | Page | | | XVI. | Societies of Insects. | | | 1. Imperfect Societies | 1-25 | | | XVII. | Societies of Insects continued. | | | 2. Perfect Societies. | | | White Ants. Ants | 26-106 | | | XVIII. | Perfect Societies of Insects continued. | | | Wasps. Humble-bees | 107-118 | | | XIX. | Perfect Societies of Insects continued. | | | Hive-bee | 119-167 | | | XX. | Perfect Societies of Insects concluded. | | | Hive-bee | 168-214 | | | XXI. | Means by which Insects defend themselves | 215-266 | | | XXII. | Motions of Insects. | | | Larva and Pupa | 267-299 | | | XXIII. | Motions of Insects continued. | | | Imago | 300-370 | | | XXIV. | Noises produced by Insects | 371-403 | | | XXV. | Luminous Insects | 404-424 | | | XXVI. | Hybernation and Torpidity of Insects | 425-459 | | | XXVII. | Instinct of Insects | 460-523 |
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