TO 
CAPTAIN HENRY DUNDAS TROTTER, R.N. 
&c., &e., &c. 
Commander of the Expedition sent by Her Britannic 
Majesty, Queen Victoria, to the River Nicer, with the view 
of obtaining information respecting the adjacent countries, and 
of forming treaties with the native Chiefs against the Slave 
Trade, as well as of promoting Agriculture and Commerce ; 
under whose auspices most of the Collections described in the 
following pages were formed ;—this work is dedicated, 
With sentiments of the highest regard and respect, 
By his faithful friend and servant, | 
Tue EDITOR. 
Rovar GARDENS, Kew, 
Nov. 1, 1849. 
