ON THREE BALLOON ASCENTS IN 1864 AND 1865. 



161 



Balloon Ascent, from Woolwich Arsenal, February 27, 1865 {continued). 



mometers (free). 



Difference 



8-1 

 9° 



9-8 



IO'O 



9-2 

 9 -a 

 9 -z 

 9 -2 



107 

 107 

 io"9 

 107 

 107 

 97 



9"4 

 92 



9-2 



97 



io - 4 



no 



iro 



107 



10-3 



7-0 



60 



57 



S - a 



4*5 



4'5 



3'5 



3-0 



3 -2 

 38 



3'5 

 42 



4-0 

 5-2 



S" a 

 48 



4-5 

 4-0 



4*5 



4'5 

 4'J 



5-0 



4-5 

 4-0 



Dew-point. 



19-4 

 I7"7 

 165 

 161 

 1 6-6 

 16-6 

 166 

 166 

 i3'o 

 13-0 

 124 

 13-0 

 130 

 167 

 177 

 179 



179 



»93 

 1*5 



'7-5 



17*5 



197 



207 

 27-0 

 286 

 28-9 



29 - 



30*2 



30-8 

 331 



34-2 

 34-0 

 33'3 

 353 

 34'° 

 35-5 

 351 

 35-1 

 357 

 347 

 347 

 336 

 32-6 

 33-1 

 331 

 33*i 

 35 - 3 

 347 



Gridiron 

 Thermo- 

 meter. 



Dry and Wet Therms, (aspirated). 



Hygrometers. 



Dry. 



Wet. 



Diff. 



8. 



Dew- 

 point. 



Daniell's. 

 Dew-point. 



Delicate 

 Renault's, likened, 

 hull) Thcr- 



Dcw-point. 



15-0 



i7 - o 



15-0+ 



i6'o 



383 



34-0 



35'° 



9. 



10. 



3 3'° 



45-0 



43'5 

 435 



42-5 



4i'o 



46-0 



11. 



12. 



13. 



14. 



15. 



1G. 



17. 



(7) Moving towards Long Ejacli 

 (10) On level with lower clouds. 



(12) Upper clonda moving as bsfore ; no sun 

 186o. 



(8) Sin hot. 

 (11) Bolow cloud. 



(9) Opoued valve. 



