I have often said to myself, "Why should not one name his books as he names his children, arbitrarily, and let the name come to mean much or little, as the case may be?" In the case of the present volume—probably my last collection of Out-of-door Papers—I have taken this course, and have given to the book the name of my place here on the Hudson, "Riverby," by the river, where the sketches were written, and where for so many years I have been an interested spectator of the life of nature, as, with the changing seasons, it has ebbed and flowed past my door.

J. B.