1833.] Additional Note on the Climate of Nagpur. 543 
inch for the time, proving that air or moisture had previously insinuated 
itself into the vacuum. In November, 1824, a note occurs, at Bombay :— 
«« add .200 to make barometer agree with one afterwards used and found 
to be more correct.” The change of instrument was made in January, 
1826: the new tube was againcleaned and repaired in June and in No- 
vember* : it broke in May, 1829, and was replaced by one standing full 
.200 lower. These circumstances were pointed out by Dr. Wyuin, as 
depriving his tables of that measure of exactitude required for deducing 
the altitude of Nagpur barometrically ; but with the precaution of aug- 
menting the whole of the indications up to September, 1823, by two-tenths 
of an inch, and proceeding in the same manner with May—September of 
1826, and with new barometer of June, 1829 ; all of which alterations 
_are borne out by notes on the diary ; the results will be found to agree 
very well inter se, andto be fully sufficient for the determination of 
the annual and diurnal oscillations, whichit is my object to deduce for 
as many points as possible on the Indian continent. 
The following tables present an abstract of the monthly means de- 
duced from Dr. Wyuin’s daily observations: they have been reduc- 
ed to the temperature of 32° Farh. 
Five months of 1820 are omitted for want of space, as the year was 
incomplete ; but the entries were used in the calculations of the monthly 
means in the tables which follow. 
Taste I.—Meteorological Observations at Nagpir, by Dr. Wrutz. 
Barometer reduced to 32° Farh. 
1821 1822 | 1823 1826 | 1827 | 1828 | 1829 
9a.mM.5P.M.|9 A.M.5 P.M.|9 A.M. 5 P.M. 
NOON. | NOON.| NOON.| NOON. 
January, |28.906| 28.783 | 28.839 |28.722|29.026|28.927/28.880] .... |28.867|28.807 
February|)29.031} .914} .866) .725/28.980} .886] .780] .... 402} +.796 
March, .| .102| .989! .756| .642| .862| .779! .... '28.759; .716! .733 
Apts!) .0d5| 690) .698) .587] -.763| .600)).... 666} .622) .615 
May, ~.-|28.842! .729) .710) .646| .695| .610) .612 062] ...- 
427) .390 
July,.....| .563} .492| .643) 543] .630} .514] .455 401| 437] 458 
August,..] .465} .412) .646) 560} .693) .610, .507; .478; .512/ .508 
June,..-| .695| .611| .667} 1593] .682/ .568} .481| .402 
Sept....| .558) .472| .706| (613! .g03| .680| .547| .515| .515| .556¢ 
October,} .733; .634| .828] .724 724] .711] .688) .675f 
Nov. | .805| .760| .970] .859 844} 811} .841] .845fr 
Dec. emnere| .889| .770)29.012}| .922 arte .847| .847f 
+ 0.200 has been added to these five months as supposed index error of a new tube 
then used. 
* After this filling of the tube in the damp weather of June, we find the mercury 
for five months standing full two-tenths too low, confirming my remarks in a for~ 
mer number of the Journau. The cleaning in the dry weather of November again 
raised the index to the same or even a greater amount. 
