[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.