a 
Balloon Ascents. 
ON EIGHT BALLOON ASCENTS IN 1862. 
Hendon, August 21, 1862. 
mometers (free). 
Diff. 
° ° 
77 |—29"0 
8:0 29°4. 
74 1770 
73 26°7 
77 19"0 
75 27°7 
7° 17°3 
6:0 139 
63 159 
57 |—138 
60 |+ 51 
68 |+ 16 
58 |+ 18 
63 |— 68 
by |— 54 
60 |— 54 
63 |— 44 
vue i 55 
7O) «|-+ 88 
78 17°3 
74 14°7 
8°3 16°0 
78 18-1 
75 18°7 
10°5 18°0 
113 18°7 
10° 2I'0 
10°3 20°1 
10°5 20°5 
1r'5 19°6 
10°2 22°0 
78 25°8 
68 27°8 
58 30°2 
45 3371 
1'5 38°7 
15 39°72 
1'5 38°7 
1°5 38°7 
17 EVA 
20 37°3 
x7, S77 
7. 379 
2°5 38-0 
31 We) 
2°6 39°72 
37 |+372 
8. 9. 
Dew-point.| Thermo- 
Negretti 
and 
Zambra’s 
Gridiron 
meter. 
10. 
(9) Clouds approached. 
(11) In mist. 
(13) Top of cloud. 
(15) Fog; mist. 
Dry and Wet Thermometers (aspirated). 
Dry. 
11. 
Wet. 
12. 
413 
Hygrometers. 
Daniell’s. | Regnault’s. 
Diff. |Dew-point. 
Dew-point.| Dewe-point. 
° ° ° ° 
13. 14. 15. 16. 
(10) Lost sight of sun. 
(12) Just entering the clouds. 
(14) Valve opened. 
(16) Earth visible. 
(17) Passed through cloud about 2000 feet in thickness, and found the country without a 
Tay of sun, misty and dark, 
