i ON EIGHT BALLOON ASCENTS IN 1862, 
471 
at every 1000 feet up to 29,000 feet. 
¥ August 21, | September 1, September 5. | September 8. | Mean, 
the sky. State of the sky. 
: 5 | s -| Height 
Cloudy. a y Cloudy. | Cloudy, ass y Cloudy. |) Cloudy. | Cloudy. B z sha the 
a S| level of 
; : 7 é S sea, 
=} = o 2 ° o n ° n ° a 5|| 2| 6 
gia fa|a/2]2 |) 4 | 44/2] alseise 
feet. 
= 29000 
28000 
| 27000 
3 26000 
S 25000 
oe oe oe a 2 16 ee oe | oe] ee flee}eoi/76/ 1} 24000 
sre ar ee AD ate 21 : sie: . ++|--|/211 1] 23000 
=e ae ae se se 32 ° ce live | co] oe |Jee{+ +1132] 1] 22000 
oe ar “fe or ve 33 Pd ore mor ++/++{/33] 1} 21000 
ts oe ae a a 5° cap laces ae ++|++|/36)2] 20000 
ois a oe an ah 20 ° Sahl) crenlie rej*+|/21/2] Igooo 
ae ee oe oe a 41 : ee | oo] oe | oe flee]e +1133] 3] 18000 
.. .° . o° 76 ee eoles ee |]- +/+ 1145/3] 17000 
oe . . a ae 84 e's oe | oe + |le+]--1153| 3] 16000 
ole oo oe an ee 89 oo| v0 ve fies}e*|/58) 3 15000 
18 12 . oe 88 : ae. |s~ +e |{Z5] 21143/3] 14000 
28 17 . ar AG gr a oe | oo} ee | ve [123] 2114813] 13000 
36 28 . sé os 81 oe tet feats ++ 132] 21/48] 3] 12000 
43 43 os . oe 85 on ee lice] ee} oe 1143] 21/5215] 1000 
46 51 os ee 8x . wes | ete ++ {148} 21/52] 5] tooco 
56 42 c an 75 a ielbsts ++ 1149] 21/54] 5 gooo 
61 38 . 4c AR 71 ne 5 + 1149] 21/5817 8000 
71 58 o° ee 77 . + |63] 2//64) 7 7000 
97 89 Se 98 - ++ ||82! 3/68) 6 6000 
93 81 pie AP, gt ar ++ 1183] 5/|69] 6 5000 
78 78 69 70 we 86 * 86 | 96 | 94.| 89 ||80|10}/76} 7 4.000 
86 85 76 69 75 81 85 75 ||80/12//76| 5 3000 
88 17 78 86 74 76 ° 83 77\E1\|71) 5 2000 
96 74. 72 ee 3 76 oe 82] «| -- | e+ 1177] 81168) 5 1000 
94 81x aD : > 76 15.2 4\ (Gi) «+ 1177) 61163] 4 ° 
the air, as might be expected, is very much greater than in clear states; and 
above the clouds, at the same height, there are very different degrees in the 
different experiments. 
The laws of moisture are indicated by these experiments, as found by 
taking the means of the numbers under the same state of the sky, and are as 
? 
follows :— 
With an overcast sky, the degree of . 
humidity on the earth was ....... ; \ 17 from. 6 experiments. 
MEADOOMoS ION Ss... Solx aes. deoeR Peg bo 
2000Reoaiasnt wiinaes piadawt: youd wenke bibl. 
SOOO re aecart as seve tele oe ie o brotess 80°; 12 
NO Brn! Ray cia sto steers A apne chile SON, VLG 
EMD iene tats ontats  ietn rs cea Sa A 
SG sorar ev cre yrs ra ate teatcparg aay nator ete ne OI re 
