[207] Origin of Species, c. vi.

[208] Ibid., c. viii.

[209] It is a grave aggravation of the problem, which need only be mentioned here, that the bees which make cells are neuters and have no descendants, while the queens and drones which are the progenitors of the whole race never do a stroke of work in the course of their existence.

[210] Descent of Man (1st Edition), ii. 385.

[211] Ibid., i. 107.

[212] Ibid., ii. 386.

[213] Charles Darwin et ses précurseurs Français, p. 151

[214] Ibid., p. 167.

[215] La vie des êtres animés, p. 161.

[216] Saint-Hilaire.