At Longerenong Agricultural College and the Rutherglen Viticultural College attention is given to the improvement of wheat by systematic selection, crossbreeding and hybridisation in one case, and the fixation and testing of new crossbred wheats in the other.
"Wheat Growing in Australia"
Australia Department of External Affairs
hybridisation is not considered by Mr. Darwin as a cause of new species, but rather as tending to keep variation within bounds.
"The Antiquity of Man"
Charles Lyell
On any parallel of latitude-taken in the climatic rather than in the geometric sense-the racial composition of the west-European population will be much the same, virtually identical in effect, although always of a hybrid complexion; whereas on any parallel of longitude-also in the climatic sense-the racial composition will vary progressively, but always within the limits of the same general scheme of hybridisation,-the variation being a variation in the proportion in which the several racial elements are present in any given case.
"An Inquiry Into The Nature Of Peace And The Terms Of Its Perpetuation"
Thorstein Veblen