ON FIVE BALLOON ASCENTS IN 1863. 435 
Balloon Ascent, from the Crystal Palace, March 31, 1863. 
mometers (free.) Negrete Dry and Wet Thermometers (aspirated). Hygrometers. 
ani 
Zambra’s «ap 
eae Daniell’s. | Regnault’s. 
Diff. | Dew-point, oe Dry. Wet. Diff. | Dew-point. 
meter. Dew-point. | Dew-point. 
5-6 Og geet eld Rone ae a a 48:0 t 
56- 33°3 | 49°8 
5°6 Bona Seaamh st tecegeahbi |. scdpemrall © lcd. cOea BR sates cain meee: 36°2 
570 38°9 
62 35° | 4771 
64 33°7 
79 29°2 ATOns|) jaadegip ll) cosas seoee git NE <iagena ual! Shave . 30°0 
ye PL Gast 38°6 
4°5 26°8 
6°5 23°3 
70 20° 36°6 
6°3 as | 355 
g°0 Il] 33°5 
2 11'6 [no dew. 
79 Gee Nee tebmbep lh: fess" Pill Se«oagn a oll oteansaaeammeenaens 22°0 
77 8-2 
#3 79 
[no dew. 
aE —16'9 GA Cee rel | CCE RN (er Uae Segecsiaalh th cee 20°0 
Meee b cgaens 16°1 {no dew. 
g'0 ROM rca UT ieascaal, [i feseogs.,.| lncoccOe <ageco gall Wen eee Io 
: g'0 —63°6 I1‘0 
as | —63°5 
8:0 —58°0 9°5 
8-2 —58'0 g'0 
P] 59 | 407 | 13% 
70 —52"4 
6°0 —43°6 O'S 
‘ 5°5 39°7 0°3 
3°9 —23'2 £1°r 
3°9 —23°4 IVT 
“—s 
es. fk Up ale ee eS Te 
REMARKS. 
(11) Can see to line F in the spectrum ; violet dull ; cannot see a single line beyond D. ~ 
(12) Valve opened ; gas-very thick. 
(13) Lost sight of the violet end of the spectrum ; cannot see any lines at all. 
(14) Spectrum very short; no lines; can see a little beyond D to E, not F. 
(15) My heart beats very loud ; the sun’s shape in the water is well defined ; Isle of Dogs 
visible; St. Katherine’s Docks very distinct, apparently 10 miles distant ; Crystal Palace 
apparently nearly under us. : 
(16) Gas issuing from the neck of the balloon. (17) Gas yellow and opaque. 
¥ ue) No lines visible in the spectrum, faint violet rays to G@; my face is of a glowing 
mpurple. .. . 
19) Letting gas off rapidly ; the earth looks beautiful. 
20) Mouth of the Thames apparently nearly under us; coast visible to Dover; can see 
Brighton and the sea beyond; gas suddenly became clear. pray 
F 
