Note 191 — Chapter II

Sir C. Lyell (Principles of Geology, p. 682) notices ‘the incredible number of insects which lay waste the crops in Brazil;’ and Mr. Swainson, who had travelled in that country, says ‘The red ants of Brazil are so destructive, and at the same time so prolific, that they frequently dispute possession of the ground with the husbandman, defy all his skill to extirpate their colonies, and fairly compel him to leave his fields uncultivated.’ Swainson on the Geography and Classification of Animals, p. 87. See more about these insects in Darwin's Journal, pp. 37–43; Southey's History of Brazil, vol. i. pp. 144, 256, 333–335, 343, vol. ii. pp. 365, 642, vol. iii. p. 876; Spix and Martius's Travels in Brazil, vol. i. p. 259, vol. ii. p. 117; Cuvier, Règne Animal, vol. iv. p. 320.