One may well imagine the horror of the mother as she saw her adventurous offspring crawling out beyond the projection of the railing, and only great self-control enabled her to reach the wooden board held lightly by the fingers of an equally criminal cousin, and by an agonized clutch make it impossible for the seesaw to slide down with its two foolhardy riders. Needless to say, no such feat was ever performed again, but the piazza became the happy meeting-ground of all the boys and girls of the neighborhood, and there not only Theodore Roosevelt but many of his friends and family put in a stock of sturdy health which was to do them good service in later years. At the same time the children of that house were leading the normal lives of other little children, except for the individual industry of the more delicate one, who put his hours of necessary quiet into voracious reading of history, and study of natural history. Again the summers were the special delight of our lives, and the following several summers we spent on the Hudson River, at or near Riverdale, where warm friendships were formed with the children of our parents’ friends, Mr. and Mrs. William E. Dodge, Mr. and Mrs. Percy R. Pyne, Mr. and Mrs. Oliver Harriman, and Mr. Robert Colgate. Groups of joyous children invented and carried into effect every imaginable game, and, as ever, our father was the delightful collaborator in every scheme of pleasure. There began Theodore’s more active collection of birds and animals. There he advertised for families of field-mice, and the influx of the all-too-prolific little animals was terrifying to the heart of so perfect a housekeeper as my mother. The horror produced by the discovery of several of the above-named families in the refrigerator was more than trying to the nerves of one less devoted to science. My sister Anna, the most unselfish of older sisters, was the chief sufferer always, as, in spite of her extreme youth--for she was only four years older than my brother--her unusual ability and maturity made her seem more like a second mother than a sister. On one special occasion Theodore, having advertised and offered the large sum of ten cents for every field-mouse and thirty-five cents for a family, left for a trip to the Berkshire hills, and my poor sister was inundated by hundreds of active and unattractive families of field-mice, while clamoring country people demanded their ten-cent pieces or the larger sum irrelevantly offered by the absentee young naturalist. In the same unselfish manner my sister was the unwilling recipient of families of young squirrels, guinea-pigs, etc., and I can see her still bringing up one especially delicate family of squirrels on the bottle, and also begging a laundress not to forsake the household because turtles were tied to her tubs!