ROBERT BROWN, ESQ., D.C.L , 



MliMHER OF THE INSTITUTE, 

 VICE PRESIDENT OF THE LINN/EAN SOCHiTY, 



&c. &c. &c. 



My Deal' Sir, 



Having enjoyed your fiiendship from the 

 eai'liest period of my botanical career, and derived 

 inestimable advantage from our fi-equent intercourse, 

 as well personal as by letter, I tnist I may be per- 

 mitted to put that friendship, of which I have so much 

 reason to be proud, on record, in the dedication of the 

 present work, which is indebted to your writings and 

 counsel, for much of what merit it may possess. Too 

 happy am I in any opportunity of assuring you that 



I am, 

 With most sincere regard and esteem, 

 Your faithful and affectionate, 



W. J. HOOKER. 



Keic, Januarif 1, 184()'. ^ 



