TO 



AYLMER BOURKE LAMBERT, Esq. 



F.R.S. F.A.S. 



VICE-PRESIDKNT OF THE LINNEAN SOCIETY. 



SIR, 



I AM conscious of ojfering hut a 

 small tribute of gratitude, when I beg to 

 he permitted to inscribe the following pages 

 with your name. Should tliey happily 

 meet with approbation, the Public will 

 have, in a great measure, to thank you 

 for their existence ; as, without the aid 

 and assistance you so liberally afforded me, 

 my own feeble exertions zvould have been 

 inadequate to the performance of so im- 

 portant an undertaking. 



Should the perusal of this work in 

 any degree add to the pleasure you feel in 

 A 2 



162455 



