TO 



SIR W. J. HOOKER, K.H., 



LL.D., D.C.L.OXON., F.R.S. L.&E., F.L.S., &c.,&c., 



nOIlUESI'ONDlNG .MEMUBR OF 



^i Mkram ni $mm nf paris, 'Mnlin, to., 



THIS WORK IS DEDICATED, 



IN- TOKEN OF 



THE MOST SINCERE GRATITUDE AND RESPECT, 



BY HIS OBLIOBD SERVANT, 



M. J. BERKELEY. 



