398 Barometric Observations. 
> Leighton, Nov. 22, 1821, 
Dear Sir,—! have the pleasure to send you the observations 
of the Barometer at this place and at Bushey, as usual, on 12th 
November. 
LEIGHTON. 
— 
8129-578 | 46 | 45 |S.S. W. | calm. /Fine. 
V 
9 |29:-600 | 47 | 46 |S .S.W.| do Do. 
10 (29-620) 48 | 49 |S .S.W.| do Cloudy. 
11 |29-633 | 482) 50 | S.S.W.| do Do. 
12 |29-643 | 494) 52 |S.S.W. | do Fine 
1 |29°652 | 49% 52 |S.S.W.! do Do. 
BusHEY. 
a Barear i rin Wind. | Denom. Weather. 
85'29-361/50 |48 | W.S.W. | fresh. | Dense fog. 
9 |29°379|50 |49 | W.S.W. | do. _| Cloudy. 
10 |29:599| 50 [50 |S.W. byS.| moder.| Do. 
11 |29:417/51 {51 | W.S.W. | fresh. | Fine. 
12 /29-431)| 522 |52!| W.S.W. | do. Do. 
1 |29-435 | 52-7|52-5| W. by S.|do. | Do. 
The calculated height of Bushey above Leighton, by the ob- 
servations made in October, by Colonel Beaufoy =212°1 feet. 
by B.Bevan...... 211° 
by the observations of this month., 209: 
My son Joseph has calculated the difference of the heights of 
Mr. Cary’s instrument and mine for the last three months, as 
below, August ., .. 252: feet. London below Leighton, 
September .. .. 204° 
October .. .. 248: 
Mean of 3 months 201° 
I had some hopes of finding a section of the River Thames 
from London to the sea, either at the Trinity-House or at Guild- 
hall; but am sorry to say, no such document is to be found at 
either place. When the commercial importance of the river is 
considered, and the great interest, as a matter of science, such a 
section would command, it is rather surprising that no public 
body or society have yet obtained this desirable information, 
I am, dear sir, yours truly, 
B. BEVAN. 
METEORO~ 
