[ 98 ] 
ficiently near the truth to demon ftrate, in general, 
the unhealthfulnefs of a marfhy fituation, and as 
the regifter from whence they are derived is the 
only one, in fuch a fituation, which I have ever 
met with, and Dr. Alexander’s experiments may 
lead fome to very wrong conclufions on this 
fubjedl; I could not help thinking, that there would 
be no impropriety, in fending you the account, I 
have now given. If you think it of any impor- 
tance, I fhall be obliged to you for reading it to 
the Royal Society. 
I cannot help taking this opportunity to add 
my wifhes, that fuch regifters of mortality, as thofe 
publifhed by Mr. muret, were eftablifhed in every 
part of this kingdom. We might then determine 
immediately every fuch queftion, as that which has 
occafioned this letter ; and know certainly, what 
influence different airs and different fituations have 
on the duration of life. Two ingenious phyflcians. 
Dr. percival at Manchefter, and Dr. haygarth 
at Chefter, have lately, with much zeal, promoted 
inftitutions of this kind; and a great deal of ufeful 
information may be expe&ed, from the accurate 
and comprehenfive regifters of mortality, which, - 
under their direction, have been eftablifhed in thele- 
towns. But the inftru&ion arifing from thefe 
eftablifhments cannot be complete, tilL they be- - 
come univerfah 
I am, Sir, 
Your moft obedient “ 
Newington < 3 reen, 
Dec, 21, 177.3.. 
and humble Servant, 
RICHARD PRICE. 
14 X..G/' 
