We also thank Messrs.

Elliott & Fry for very kindly placing at our disposal a negative of the fine portrait, which forms the frontispiece to Volume II.

For the opportunity of making facsimiles of diagrams in certain of the letters, we are once more indebted to Sir Joseph Hooker, who has most generously given the original letters to Mr.
Darwin's family.
Cambridge, October, 1902.
TABLE OF CONTENTS.
CONTENTS OF VOLUME I.
Outline of Charles Darwin's Life, etc.
CHAPTER 1.I .-- An Autobiographical Fragment, and Early Letters, 1809-1842.
CHAPTER 1.II .-- Evolution, 1844-1858.
CHAPTER 1.III .-- Evolution, 1859-1863.
CHAPTER 1.IV .-- Evolution, 1864-1869.
CHAPTER 1.V .-- Evolution, 1870-1882.
CHAPTER 1.VI .-- Geographical Distribution, 1843-1867.
ILLUSTRATIONS IN VOLUME I.
CHARLES AND CATHERINE DARWIN, 1816.

From a coloured chalk drawing by Sharples, in possession of Miss Wedgwood, of Leith Hill Place.
MRS.

DARWIN, 1881.