ON EIGHT RALLOON ASCENTS IN 1862, 475 
Tasre IX, (continued.) 
Between 4000 and 5000 feet. 
Dew-point Temperature of the Dew-point as deter- 
Temperatures mined by 
fe Dry and Wet | 5 
Calculated Ob d Dry and Wet (free) oe Te s 
oan 5s . ryan that by site tat ky a2. 
Date. Height. Peaubbaameipes } (Ee 
ge ag eee Ee ee ee ea 
P.|PS) 2/5822) (58) 8 | 28 [Eee 
2 @ 8 B a & a 
E | éa\ge| 8 | de | en| ae a |A 
re d h mj} feet, ° ° ° ° ° ° ° © ° ° 
July 30 4 56 | 4169 | 403] +. | 4I°5| « oo |—1'2 
4 563) 4279 | 39°7| «+ | 412) os o |= 25 
5 15] 4104 | 40°2| -« | 43°L) oe « |—2°9 
5 3.| 4324 | 40°7) ++. | 432) + * [724 
5 43) 4403 | 39°38] -«.| 4I°0| .- . |-12 
5 73) 4613 | 36°5| -e.| 40°5.| o- +s |—4'0 
5 9%| 4683 | 382] -«.| 39°75] oe oe | 14 
5 14 | 4863 | 37°3} -+-| 39°5| + + |—22 
5 16 | 4873 | 380] «. | 39°0| «- «| +30 
5 163) 4923 | 37°6| ++.| 39°5| ++ » |-¥9 
6 21 | 4950 | 37°0] +«.| 39°70] «» ee .|—2'0 
6 22.| 4450. | 38°8| «..} goo] . es [12 
Aug.20 6 42 | 4116 | 45°9| «2 | 44°2| oe oe |41°7 
6 48 | 4316 | 43°8| -- | 44°5| «- ee |\—O'7 
6 49 4116 | 45°7| «+ | 44°5| «© me +2 
7 
di 
7 
5 
5 
I 
5 
