ON NINE BALLOON ASCENTS IN 1863 AND ISGl. 



337 



Balloon Ascent, from Derby, June 20, 1864. 



mometers (free). 



Diff. 



7'3 

 6-9 

 6-0 

 7-0 



S'o 

 7-0 

 6i 



6-0 



f4 

 5-5 



4' I 



4' I 

 4'2 

 SI 

 3*5 



3"5 

 3-0 

 3-0 

 2-4 



2'0 



2-3 

 2'0 



IS 

 IS 

 '•S 



2'0 



17 



17 



2*0 

 2"0 

 2'0 



17 

 27 



*'3 

 2'0 



2'0 



Dew-point. 



S3'2 

 53'S 

 SS'I 

 S3'9 

 55'9 

 52-3 

 51-9 



50-9 

 50-8 



50'2 



50-4 

 50-4 



50'2 



48-4 

 48-6 



47-6 

 48-1 

 48-1 

 48-0 

 48-0 



4y9 

 48-2 

 487 

 48-1 

 48-1 

 47'i 

 477 

 477 

 47-1 

 47-1 

 48-0 

 48-8 

 47"2 



48-9 

 495 



50*0 



Gridiron 

 Thermo- 

 meter. 



Dry and Wet Therm, (aspirated.) 



Dry. 



Wet. 



Diff. 



Dew- 

 point. 



Hygrometers. 



Daniell's. 

 Dew-point. 



Regnault's. 

 Dew-point. 



45-0 



48-1 



48-3 



48-0 



48-0 



Delicate 

 Blackened 

 Bulb Ther- 

 mometer. 



66-0 



59-0 



58-2 

 S8-3 



8. 



9. 



10. 



11. 



12. 



13. 14. 



15. 



16. 



17. 



gas issuing from the neck of the balloon : earth misty. 



(15) Clouds around ub 



(16) Eutering cloud. 



(17) In a white cloud; fog; can see nothing; clouds blacker above than below; gas 

 muddy looking ; warm. (18) Can hear watch ticking plainly. 



(19) Heard a railway train. 



(20) At 6h 31" 30« at 3938 feet. Mr. Goodchild's pulsations were 90 in a minute ; Mr. 

 AUport's the same ; Master Glaisher's 86 ; Mr. Jackson's and Mr. Coxwell's 94 • Mr 

 Glaisher's 90 ; Mr. Knight's 110 ; and Mr. Bourne's 112. 



Over Ilkeston, or about 10 miles from Derby ; saw ten furnaces, &c. ; counted ten brido-es 

 over the river. (21) Gas clear; heard shouting ; can see men, sheep, &o. 



(22) Gas bright. (23) Can see Nottingham. 



