326 Dr. Darlington’s Pluviometrical Observations. 
Art. XII1.—Pluviometrical Observations, made at Wesi- 
Chester, Penn. by Wu. Daruineton, M. D. and commu- 
nicated in a letter, sini 
Wasuineton City, Feb. 14, 1823. 
Str, 
Iv the year 1817, nat the 20th of June.) I commenced 
an account of the quantity of rain and snow which 
fell in the borough of West-Chester, in the State of Penn- 
sylvania—a statement of which I now submit to you; an 
if you should be of opinion that it is worthy of preservation 
in your Scientific Journal, it is entirely at your service. If 
observations of this description were made for a series of 
years, in the various sections of the United States, they 
would undoubtedly tend to furnish us with more accurate 
conceptions of the nature of our climate, as well as with the 
means of comparing it with that of other countries. They 
would also enable us to ascertain, in the course of time, the 
real character of those changes which are supposed to be ta- 
king place in the climate of this continent, by reason of cul- 
tivation, clearing of forests, and other causes. Some useful 
data, likewise, might possibly be afforded by such accounts, 
to assist Medical Philosophers in investigating the causes and 
character of prevailing diseases, in the country. In the 
present instance, I have to regret the occurrence of an hia- 
tus in the account, from 29th November 1819, to March 7th 
_ 1820, owing to the accidental loss of my memoranda for 
that period: but the statement, for the residue of the time 
“embraced, may be relied upon as being complete, and tol- 
erably accurate. I am sensible that it would have been 
much more satisfactory, if it had been _accompanied with 
Poerinomenitel and B 
it not in my. gti to furnish a statement of that sort as ful- 
ly as could be wished, and have therefore omitted it alto- 
gether. 
