If there is nothing in heredity, and all in environment, the offspring from the vicious cow will be as docile and as safe as the offspring from the gentle cow; the offspring from the scrub horse with a six-minute record can be trained to trot as fast as the colt whose parents had a record of a mile in less than two minutes; and the children of the degenerate class will be as healthy and well developed, as intellectual and moral as the children of the normal parents. =Heredity in plant life.=--There is operative in every sprig of grass, weed, vegetable, shrub, and tree two agencies--heredity and environment. What they are and what they are to be are wholly determined by these two agencies. In the past fifty and seventy-five years we have doubled the size, variety and quality of our vegetables and fruits. Nature gave us the wild rose, bearing a small bloom with five petals; nature and man have produced the large, shapely, fragrant, beautiful rose of the yard and garden, bearing from fifty to one hundred petals to the bloom. Nature gave us the knotty wild strawberry; nature and man have produced the large, luscious strawberry of the market and table. If our cultivated and highly developed vegetables and fruits had been left to the careless farmer, or in their wild state, with their heredity and environment without intelligent control, a Keifer pear and an Alberta peach would not have been produced in a million years. =Heredity in animal life.=--In the last fifty and one hundred years intelligent man, through the wise control of heredity and environment, has produced the [Illustration: A WILD STRAWBERRY.--Nature Gave us This.] [Illustration: CULTIVATED STRAWBERRY.--Good Heredity and Environment Produced This.]