268 



KEFORT — 1864. 



Table III. (continued.) 



Sixteenth Ascent. 



October 9. — The temperature before starting from the ground on this daj' 

 -v^'as 54i°, decreasing gradually on ascending till the height of 7300 feet was 

 reached, where it was 30° ; the balloon then turned to descend, and the tem- 

 perature increased gradually to 42° at 2300 feet. On reascending the tem- 

 perature was found to be 39|° at 3600 feet ; it increased to 45° on descending 

 to 1500 feet, and on again ascending declined to 28° at 7200 feet ; the decline 

 of temperature after this was very slight, but it became too dark to read the 

 instruments, so that no observations were made either at the highest point 

 reached, or during the descent to the earth. 



There were neither warm nor cold ciirrents met with on this day. 



