William Brewster, one of the greatest American ornithologists, was fortunate in being able to spend his life in the study of birds. On his large estate in Cambridge, he maintained a bird sanctuary and museum. When still a young man, he bought a large tract of land in Concord, Massachusetts, to which he added from time to time until the place finally included some four hundred acres. To it he gave the name “October Farm.” There he spent days and weeks observing the birds and animals about him with trained eye and sympathetic delight. Almost every day he jotted down his observations in a series of diaries which he bequeathed to Harvard University, along with his bird collections, on his death in 1919. From these journals his old friend Rev. Smith O. Dexter made a number of selections, part of which we published last autumn with the title October Farm. The great success of that volume has encouraged us to issue this autumn the remainder of Mr. Dexter’s selections; for this volume we have chosen the title Concord River. Another friend of Brewster’s, the well-known artist Frank W. Benson, has contributed twelve bird studies as illustrations. Three of these are in color, eight are black and white water colors, and one is an etching. Since very few of Mr. Benson’s bird sketches have ever been reproduced in books, these illustrations form a noteworthy addition to Brewster’s own material. The volume will appeal at once to everyone interested in birds, in the lovely old town of Concord, or in choice English prose. It will, like October Farm, be considered a classic, worthy to stand beside Thoreau, Muir, and Hudson.