D E D IC JTIO N. 
thorough Judge of their Ufefulnefs, and who 
have, by your univerfal Knowledge, de- 
fervedly obtain’d a Place in the firft Rank 
of Learned Men. 
I hope You will accept this as a Token of 
the moft fincere Refpedt and higheft Re- 
gard, which I fhall ever retain for You, being, 
SIR, 
LONDON, 
Aug. i. 1738. 
Tour moji obliged , 
and moji devoted 
humble Servant, 
Cromwell Mortimer, M. D. 
Secretary to the Royal Society, and 
Fellow of the Royal College of 
Physicians, LONDON. 
N« 436. 
