Regarding the minor, but not unimportant, part played by sexual selection, Darwin writes: “For my own part, I conclude that of all the causes which have led to the differences in external appearance between the races of men, and to a certain extent between man and the lower animals, sexual selection has been by far the most efficient” (Descent of Man, ed. 1871, ii., 367).
Scientists who are advocates of the Christian cause are not always as candid as one could wish. While the Church cited Sir Richard Owen “as an authority against the Darwinian theory, especially in its application to man’s descent, there remained in the memory of his brother savants his lack of candour in never withdrawing the statement made by him, and demonstrated by Huxley as untrue, that the hippocampus minor in the human brain is absent from the brain of the ape.” (See p. 172 of Mr. Clodd’s Pioneers of Evolution. See also remarks by Sir Charles Lyell, pp. 485 and 486 of his work, Antiquity of Man. On p. 290 he further tells us that “we may consider the attempt to distinguish the brain of man from that of the ape on the ground of newly-discovered cerebral characters, presenting differences in kind, as virtually abandoned by its originator.”)
P. [205], lines 18–20.—That there are not more links missing is due principally to the discovery of fossil remains.
The greatest importance has been attached to a discovery in Java, made in 1894 by Eugene Dubois. The remains consisted of the crown of the skull, two teeth, and a femur belonging to a creature for which the name Pithecanthropus erectus has been invented. This pithecanthropus excited the liveliest interest as the long-sought transitional form between man and the ape. Professor Haeckel writes concerning this in his book, The Evolution of Man, vol. ii., p. 633: “There were very interesting scientific discussions on it at the last three International Congresses of Zoology (Leyden, 1895; Cambridge, 1898; and Berlin, 1901). I took an active part in the discussion at Cambridge, and may refer the reader to the paper I read there.” (It has been translated by Dr. Gadow, under the title of The Last Link.) Since then we have Professor Keasbey writing in 1901 that the remains have been “pronounced genuine,” and Professor Packard, in 1902, that it is now “generally recognised.”
Again, to give a still more recent “find,” Dr. Andrews, who accompanied the Geological Survey of Egypt, has (as mentioned by Professor Ray Lankester in his lecture at the London Institution on November 2nd, 1906) discovered a remarkable skull (now in the Natural History Museum) which is the connecting link between elephants, ancient and modern, and other mammals.
There have also been discoveries of missing links among the living. The duck-bill, a four-footed animal which lays eggs, is an important link between reptiles and mammals. Cuvier, the celebrated French naturalist, a persistent opponent of the evolutionary doctrines advanced by Lamarck and Geoffroy Saint-Hilaire, did not believe it possible that any four-footed animal could lay eggs, and it was not till long after his time, and, indeed, only quite lately, that the statements of the natives were verified, and the eggs of the duck-bill actually found.
P. [208], lines 14–18.—Enough has been said, I hope, to convince the reader that ... there is overpowering evidence against separate acts of creation, and in favour of an animal origin of the human race.
This Family Tree of Life will enable him to form a brain-picture of the various steps in the evolutionary process:—
[Note.—It is now generally admitted that man goes back at least 200,000 years.]
