THE LIFE AND LETTERS OF CHARLES DARWIN, INCLUDING AN AUTOBIOGRAPHICAL CHAPTER. EDITED BY HIS SON, FRANCIS DARWIN. IN THREE VOLUMES:-VOL. II. SEVENTH THOUSAND REVISED. LONDON: JOHN MURRAY, ALBEMARLE STREET. 1888. All Rights Reserved. ho Fronelo A. Countway THE ORIGIN OF SPECIES, BY MEANS OF NATURAL SELECTION; or, THE PRESERVATION OF FAVOURED RACES IN THE STRUGGLE FOR LIFE. A New Library Edition in Large Type. 2 vols. Crown 8vo. 125. THE DESCENT OF MAN, AND SELECTION IN 2 vols. 15s. LONDON: PRINTED BY WILLIAM CLOWES AND SONS, LIMITED, STAMFORD STREET AND CHARING CROSS. TABLE OF CONTENTS. PAGE CHAPTER III. THE UNFINISHED BOOK-MAY 1856-JUNE 67 VOLUME II. Frontispiece: CHARLES DARWIN IN 1874 (?). From the FACSIMILE OF A PAGE FROM A NOTE-Book of 1837. Photo- |