Keith is also of the opinion that "the sexual differentiation, the robust manifestations of the male characters, is more emphatic in the Caucasian than in either the Mongol or Negro racial types ... in certain negro types, especially in Nilotic tribes, with their long stork-like legs, we seem to have a manifestation of abeyance in the action of the interstitial glands."

Professor Pritsch, in his classical treatise on the natives of South Africa (407), dwells especially on the imperfect sexual differentiation of the Bushmen.

And in them we find, not only a marked differentiation into special groups, but also a marked individuality in almost every tree, giving rise to storm effects indescribably glorious.

History is not a dead thing, a thing of the past; it is eternally present to man, and this is one of the sharp differentiations between man and beast.

Growth, as a general name for the mutations, the ensemble of somatic and psychic differentiation, from year to year, passes through five epochs that are standard for the normal.

In these shawl-patterns the original simple form meets us in a highly developed, magnificent, and splendidly colored differentiation and elaboration.

Thus, the fundamental difference of sex is disregarded by social and political movements which ignore the permanent differentiation of social function ordained by Nature.

To its pre-existing differentiations new differentiations are added; and thus that lapse to a more heterogeneous state, which would have a fixed limit were the circumstances fixed, has its limits perpetually removed by the perpetual change of the circumstances.

In view of these modern efforts to make a more scientific differentiation between kinds of literature than is possible on the basis of the traditional distinction between prose and poetry, the present historical study of the distinction made by Aristotle and other Greek writers between rhetoric and poetic may be suggestive.

Yet, upon some ground, which is not explained, and which we are unable to conjecture, Mr. Agassiz concludes to the contrary in the organic kingdoms, and insists, that, because the members of such a series have an intellectual connection, "they cannot be the result of a material differentiation of the objects themselves," that is, they cannot have had a genealogical connection.

All mental action is ultimately reducible to "the continuous differentiation and integration of states of consciousness."

THE RACES OF MANKIND Arthur Keith, conservator of the Museum of the Royal College of Surgeons of England, was the first to apply the principle of endocrine differentiation to the problem of the color-linesthe lines which have divided mankind crudely into the yellow, the red, the white and the brown, the Negro, the Mongol, the Caucasian, the copper tinted American.

The widespread confusion with the poet of the rhetorician and sentimentalist in verse, and again of the mere rhymer without even rhetoric, not to refer to finer differentiation of error, is also a fruitful source of bewilderment.

"As the community of characters among the beings belonging to these different categories arises from the intellectual connection which shows them to be categories of thought, they cannot be the result of a gradual material differentiation of the objects themselves.