( iii ) 
TO HIS GRACE 
THE DUKE OF 
NORTHUMBERLAND. 
My Lord, 
I F repeated Obligations demand renew’d Acknowledgments, I 
fhould be the moft ungrateful of Mankind to omit this Op- 
portunity of declaring how much I owe to Your Grace’s continued 
Favour ; and with how little Title j beyond the mere Defire not to 
be found wholly unworthy of it. 
But there is another Source from which this Undertaking in a man- 
ner claims the Proteftion of Your Grace’s moft refpefted Name. The 
Plants which will be found its beft Recommendation, are new in 
Europe : and feveral, indeed the greater Part of thele, were firft rais’d 
in this unfavourable Climate under Your Grace’s immediate Care : they 
were-the Produce of Your own Stoves ; and Gardens. 
Theft, 
