351.
[30] Loc.cit.pp.109, 110.
[31] Heredity is the term used to denote the tendency which there is in offspring to reproduce parental features.
[32] Loc.cit.p.

64.
[33] Loc.cit.p.

60.
[34] The term "Vertebrata" denotes that large group of animals which are characterized by the possession of a spinal column, commonly known as the "backbone." Such animals are ourselves, together with all beasts, birds, reptiles, frogs, toads, and efts, and also fishes.
[35] It is hardly necessary to observe that these "sea-snakes" have no relation to the often-talked-of "sea-serpent." They are small, venomous reptiles, which abound in the Indian seas.
[36] "Origin of Species," 5th edit., 1869, p.

179.
[37] "Origin of Species," 5th edit., p.

532.
[38] Mr.A.D.Bartlett, of the Zoological Society, informs me that at these periods female apes admit with perfect readiness the access of any males of different species.