Barometric Observations. 469 
Lynn below Leighton. Manchester below Leighton. 
June .. .. 284 fat) ae ae pag 
JUNG; sse-- Sane 
Hafod &@ Mold above Leighton. DRY ses." poor ian 
February .. 235 August... .. 23 
September .. 36 
London, Mr. Cary. October oj 35/40 
January 23 200 Mean .. 45 
April .. .. 260 
July .. «235 Pocklington below Leighton. 
August.. .. 252 February .. 186 
September .. 254 Aptihigtal mom. oae 
October .. 248 FUNC» «5 00 one 
November .. 252 TU coleot ermal cmt hee 
August... .. 50 
Mean .. 255 Mean .. 102 
A remark of Dr. Burney in your November Mag., p. 397, ap- 
pears to call for some explanation. In the first place, it may 
not be improper to advise the Doctor to re-peruse the page he 
has quoted, and perhaps he will not discover any thing men- 
tioned about the suspended thermometers near the middle of 
the tube being Jower than the inclosed thermometer—the dif- 
ference only being mentioned, as being four or five degrees ; and 
if the Doctor will have the goodness to refer to your Magazine 
for August, p. 158, he will there find which way the dzfference 
was observed, and that the suspended thermometers were 3° 
higher than the inclosed thermometer. In the Magazine for Sep- 
tember, p. 238, he many also find the same statement: in addi- 
tion to which I can add, that on all the subsequent days of re- 
gistering the instruments a similar difference has been no- 
ticed. It should be observed, that my remarks on this subject 
did not refer to any barometers except those of the better kind 
having a thermometer inclosed within the basin of mercury. 
I am, dear sir, yours truly, 
B. Bevan. 
True apparent Right Ascension of Dr.MaskEtyne’s 36 Stars 
Sor every Day in the Year 1822, at the Time of passing the 
Meridian of Greenwich. By the Rev. J. Groosy. 
The mean Right Ascensions are taken from Mr.Pond’s Catalogue 
in the Nautical Almanac for 1823, and the Corrections from 
the Tables of M. Bessel. On those days where an asterisk is 
prefixed the Star passes twice, the AX there given is that at 
the first passage. 
1822. 
