It is not altogether an agreeable chronicle, this autobiography. [Footnote: Printed in "Proceedings Massachusetts Historical Society, 1892- 4," series 2, 8:349-360.] It is rather like a "pathological record," and as totally unlike the pages of his books as can be well imagined. But it is an essential document. The first pages of this biography were withheld by him and so removed from the parcel; the record begins with a general characterization of his childhood. There is no detail. But there are to be found elsewhere the memories of others which tell of his boyish enjoyment of the little wilderness of joyous colors near the school to which he was sent-microcosm of the greater wilderness in which his body and then his imagination were to wander through all his mature days till his death. His own chronicle has forgotten or ignored those elysian days and has not in all its length a joyful note or a bright color. This is the summary: His childhood was neither healthful nor buoyant.... Chemical experiment was his favorite hobby, involving a lonely, confined, unwholesome sort of life, baneful to body and mind.... The age of fifteen or sixteen produced a revolution; retorts and crucibles were forever discarded.... He became enamoured of the woods, a fancy which soon gained full control over the course of his literary pursuits.... He resolved to confine his homage to the muse of history.... At the age of eighteen (born in 1823) the plan (to whose execution he gave his long life) was, in its most essential features, formed. His idea was clear before him, yet attended with unpleasant doubts as to his ability to realize it to his own satisfaction.... The task, as he then reckoned it, would require about twenty years. The time allowed was ample; but here he fell into a fatal error, entering upon this long pilgrimage with all the vehemence of one starting on a mile heat. His reliance, however, was less on books than on such personal experience as should intimately identify him with his theme.