[226] De Gener. Anim. lib. iii, c. 7.
[227] Op cit. p. 10.
[228] De Generat. Animal. lib. iii, cap. 1.
[229] De Gener. Animal. lib. iii, cap. 1.
[230] Op. cit. p. 12.
[231] Fabricius, op. cit. p. 12.
[232] Arist. Phys. lib. i, cap. 1.
[233] Ib. lib. ii, cap. 3.
[234] Op. cit.
[235] Op. cit. p. 31.