D E D I CA TIO IV. 
tioned ; and your Regard for that Body hath 
ever been confpicuous, by your conftant and 
diligent Application to their Affairs, in the 
mid ft of the greateft and moft neceflary 
Avocations ; yet fuch has been your Mo- 
defty, that you have lately, to our general 
Regret, reftgned the Office of Preffdent, 
which you could not be induced to hold any 
longer, when you began to apprehend the 
Infirmities of a venerable Age might oblige 
you to be lefs conftant in your Attendance on 
the Duties of it. 
Give me Leave, Sir, in this Place, alfo to 
record my ownThankfulnefs to you, by whofe 
Recommendation I at fir ft obtained the 
Honour of being chofen one of the Secre- 
taries of the Rojal Society.^ which hath been 
lb many Years continued to me; an Employ, I 
hope, I have difcharged, at leaft, with Dili- 
gence and Fidelity, and fhall always en- 
deavour fo to do: I beg of you to take 
under your Protedtion thofe Volumes of Pa- 
pers fent to the Royal Society^ that have been 
publifhed under my Infpedtion, and particu- 
A 2 larly 
