[ 32 ° ] 
XLIX. An Account of the Barometer, a 7 id 
the State of the Weather, at Dublin, from 
the 7 of March 1752, to the 28 of Fe- 
bruary 1753, by James Simon, Ff quire , 
F. R. S. and Secretary of the Incorporated 
Society at Dublin : Communicated by Mr, 
Henry Baker, F, R. S. 
Dear Sir, Dublin, Sept. 4, 1753. 
Read Nov. 15, nr NOW fend you my journal of the 
1 weather for the laft year, from the 
7 of March, 175-2, to the 28 of February, 1753 , 
You will, perhaps, find it too minute; but what- 
ever fault you f nd in it fhall be rectified for the fu- 
ture, if you arc fo kind as to let me know, how I 
fhould proceed to render it ufeful. Deal with me as 
a friend ; inform me of my offtakes ; and if you do 
not think it deferves to be laid before the Royal 
Society, I beg you will not let it be feen ; if other- 
wile, you have my leave to lay it before them. 
My chief ambition would be to deferve their appro- 
bation and elfeem : of this you may allure them, and 
of my fincere refpedt and regard. 
I have obferved, that the fridticn is fo great in the 
common barometer, by the fmallnefs of the tube, 
that I wrote to London for a lamer tube. It is fome- 
thing more than one quarter of an inch clear in the 
bore ; and it took me two pounds and a quarter of 
clean purified mercury to fill it. The cittern, which 
receives the mercury, is pretty large, with a wide 
mouth ; and is cover’d with a iilk gauze, befides the 
ufual 
