On the Solar Eclipse of September 7, 1820. 275 
2”,64 in the times of beginning and end respectively for England, 
and a little more for the other places, owing to their being in 
lower latitudes. I would beg leave to request that some of the 
observers, who, I doubt not, have paid attention to so important 
a point, would communicate the diameter of the moon, as mea- 
sured on the sun’s disc. The mean of the mocn’s apparent semi- 
diameters by the calculations made for England is 14’ 50",73 at 
the beginning of the eclipse, and 14’ 47”,42 at the end. By 
the calculations for the other places, it comes out about 1” 
greater in both cases. I am, sir, yours respectfully, 
Guo. INNEs. 
In the comparison of the following results of the calculations 
with the observations, the sign — shows the calculated time to 
be too early, and + too late. 
1, LEIGHTON. 
Observed by Mr. Bevan; mean time. 
cians End. 
By observation 0% 18’ 46” 3» 10 28” 
By calculation 0 18 1,6 3 10 13,76 
—44,4 —14,24 
2. WooLwIcu. 
Observed by Mr. Evans ; mean time. 
Byobs. 0° 23’ '2”,85 35 14’ 54”,56 
Bycale, } S022 248 “OS 14 3,348  - 
—_——— 
—33 ,36 —15 ,22 
3. Busy Heat. 
Observed by Colonel Beaufoy; apparent time. 
By obs. | 0 22’ 57” 35 14’ 47” 
Bycale. 0 22 18,55 3 14 35,72 
—— 
—38,45 —11,28 
4. PLYMOUTH. 
Observed by Mr, Fox ; apparent time. 
By obs. 25 58’ 56” 
By cale. 2-58 19,03 
— 36,97 
5. Gosport OpsERVATORY}; mean time. 
By obs, =: 0"_-—«16”_ 337” ‘3h 10" © 6" 
By. cale,: 0. 17,. 27,71 3 10 26,06 
+50,71 + 20,06 
M m 2 6. Sr. 
