by
Means of Natural Selection;
OR,
THE PRESERVATION OF FAVORED RACES
IN THE
STRUGGLE FOR LIFE.
BY
CHARLES DARWIN, A. M.
One Volume. 12mo. Cloth, $1.50.
“His first point is to show that species are in many cases not well defined, and that the whole order of natural history seems to be in a state of mutation, by reason of constant variations. Thus even under domestication, important changes may be introduced by intercrossing, by selection of the best individuals for propagation, by crossing parents marked by however slight, but favorable peculiarities.