ON NINE BALLOON ASCENTS IN 1863 AND 1864. 



Balloon Ascent, from the Royal Arsenal, Woolwich, April 6, 1864. 



231 



mometers (free). 



Diff. 



Dew-point. 



Gridiron 

 Thermo- 

 meter, 



Dry and Wet Therms, (aspirated). 



Dry. 



Wet. 



DifiF. 



Dew- 

 point. 



Hygrometers. 



Daniell's. 

 Dew-point. 



Regnault's. 

 Dew-point. 



Delicate 

 Blackened 

 Bulb Ther- 

 mometer. 



7'3 

 77 

 8a 



9-8 



10-9 



III 



97 



9'4 



91 

 9"S 

 8-5 

 8s 



77 

 7-8 



"e-z 



S'S 

 5-0 

 4-2 



3-0 



39 

 3-6 



3"4 

 3'i 

 3"3 

 ^.■^ 



2'2 



2'S 

 2-9 



31 

 31 



33 

 35 

 3-6 

 3-8 



4-8 



8. 



15-0 

 15-2 

 15-5 



16-3 

 227 



22'7 

 22-4 

 22'5 

 26-2 



26-2 



267 

 25-6 

 27-8 

 27-8 

 29-6 

 29-5 



30-4 

 31-6 

 32-0 

 32-9 



34-2 

 32-2 

 32-2 



32'0 



319 

 318 



336 



34"9 

 34-9 

 34'9 

 34-8 



35'° 

 346 

 35-2 



35-5 

 368 



368 



34'o 



48-5 



22'7 



4i'o 



47-0 



23'0 



26-0 



25-0 



34-0 



34-0 



37'o 



10. 



11. 



12. 13. 



14. 



15. 



i6'o 



[no dew 



35-0 



24-5 



35-0 



37"5 



16. 



4i'o 



48-5 



5i-a 



52'0 



53'o 

 53-0 

 53-0 



54-0 

 537 



47-0 



4i'o 



43-6 



17. 



(5) Entered cloud and lost sight of sun. 

 (7) We are over water. (8) Earning. 



(6) Stratus clouds on oiu* level. 



(9) On the ground in Wilderness Park. 



