[196] Hist. Anim. lib. vi, cap. 3.

[197] Ibid.

[198] De Gen. Anim. lib. i, cap. 13.

[199] Gen. Anim. lib. i, cap. 20.

[200] Loc. cit. p. 47.

[201] De Gener. Anim. lib. ii, cap. 4.

[202] De form. fœt.

[203] Phys. lib. i, cap. 1.

[204] Gener. Anim. lib. iii, cap. 7.

[205] Gener. Anim. lib. ii, cap. 4.