ON THREE BALLOON ASCENTS IN 1864 AND 1865. 163 



Balloon Ascent, from Woolwich Arsenal, February 27, 18G5 (continued). 



mometers (free). 



Difference 



45 



4"2 

 4-5 



47 



45 

 4-8 



5-0 



5 '4 



5i 



5° 



5-o 



5* 



5'2 



2'2 

 *7 



2-6 



2-5 



2-2 

 2'2 

 21 



2'0 



2-2 



Dew-point. 



35'3 

 34'3 

 33-6 

 33-8 

 347 

 34'6 

 346 

 34*4 

 34-6 

 353 

 35-3 

 34° 

 34° 



31-9 



307 



30-1 

 297 

 29-5 



29-5 

 28-4 

 287 



28--! 



9. 



Dry and Wet Therms, (aspirated). 



Gridiron 

 Thermo- 

 meter. 



Drv. 



o o 



Wet. 



Diff. 



Hygrometers. 



Dew- 

 point. 



Daniell's. 

 Dew-point. 



34-0 



Regnault's 

 Dew-point. 



34'° 



3i'o 



33-5 



33-0 



Delicate 



Blackened 



bulb Ther 



mometer. 



34'°+ 



30-5 



30-0 



10. 



11. 



12. 



13. 



14. 



15. 



(5) Country brightened up by the sun. In haze. 



(6) In thicker haze ; only one bag of ballast. 



(7) In cloud. (8) In cloud. 

 (9) Mist. 



10. 17 



n2 



