318 Barometric Observations. 
LEIGHTON. 
Ther.|Ther.] : 
1821. aoe Pear det. Wind. | Denom.| Weather. 
829-704} 554) 53 | W. small, Rain. 
9 {29-712} 5514) 54 S. do. |Cloudy. 
10 {29-736 | 561; 56 | S.W. | do. _ |Fair. 
11 {29-748 | 572) 57 [W.S.W.! do. |Fine. 
12 /29-762 | 58 | 60 Ww. do. |Do. 
1 {29-771 | 58 | 59 Wit de... |Dp. 
A thermometer suspended at the middle of the barome- 
trical tube averaged 34° higher than the thermometer in the 
basin. 
Busey. 
* Ther.{Ther. 5 
1821. Barom. att. | det. Wind. Denom. Weather. 
8>/29°479 | 55°3}53 | S.S.W. | fresh. | Rain. 
9 |29:493 | 53°3[53 | W.N.W. | moder.} Do. 
10 |29:499 | 55°3}54°5| 3=W. do. Cloudy. 
11 |29°512| 55°3156 W. fresh. | Fine. 
12 |29-529) 56°7|58 W. do. Do. 
1 (29-539) 57.7|59 W. do. Do. 
Calculated height of Bushey above Leighton, from the pre- 
ceding month, by Colonel Beaufoy =2209 feet. 
I have also the pleasure to send you the observations made by 
Mr. Comfield, at Northampton, on the 13th of August last; and 
as the height of the lecture-room in which Mr. Comfild’s in- 
strument was placed, has been pretty accurately determined re- 
lative to the height of my instrument, the observations may be 
of use. | 
NORTHAMPTON. 
1821. Hour. | Barom. Ther. | Ther. Wind and Weather. 
att. | det. 
a 
Aug. 13th. 8" 20") 29-821 | 61 | 592 
9 4 | 29-821| 62 | 61 
10 0 | 29-821] 63 | 64 
11 0 | 29-807 | 652] 66 
12 0 | 29-804} 65 | 66 
I have not at present been able to find any correct level of the 
Biver Thames, so as to fix the zero marks in London : until this 
is done, no good general table of heights can be properly pub- 
lished, : Yours truly, B. Bevan, 
