CONTENTS. 



FAaE 



V. Second Joubney rtf EtmopE. — Correspondence. 



1850-1859 369 



VI. Letters to Darwin and Others. 1860-1868 . 454 



VII. Tbavbi, in Ectrope and America. 1868-1880 . . 565 



VIII. Final Journeys and Work. 1880-1888 . . .701 



Note on the Illustrations. The frontispiece portrait of Dr. 

 Gray is a photograTure from a photograph taken in 1886. The jjlate 

 of Dr. Gray in his study, facing page 529, is from a photograph 

 taken in 1879. The view of the present Range of Buildings in the 

 Botanic Garden, facing page 614, is from a photograph taken for 

 this work. 



