454. REPORT—1862. 
rature is distributed: for this purpose all the observations of the temperature of 
the air taken within this distance of the earth were laid down upon large dia- 
grams; a curved line was made to pass through or near them, and the reading 
at every 100 feet was taken from these curves, and those at every even hundred 
were inserted in the following Tables, as well as those from the projected 
curves as found by joining the observations themselves, and in this way the 
following Tables were formed :— 
Taste V.—Showing the Mean Temperature of the Air at every 200 feet up 
to 5000 feet. 
Temperature of the Air. 
Ascending. 
Height, in feet, j 
Jovel OF the ncn. [Betw ob-_| ‘ated 
Hee * }Petween! circum- =, |Adopted| |< 
what rved t 
tuniea! stances. com | temp. Meets 
ance. 
July 17. @ Jie ° 
5000 = 39)3)| 95 ee 
4800 2 40°4| 40°4 oro 
4600 a) 414) 41°4 o’o 
4400 mo 42°4,) 42°4 oo 
42.08 AS 4 43 4 o"o 
4000 ———— | 445| 4a5 oo 
3800 z 45°2| 45°2 o"o 
3600 a 46°0| 46°0 o"o 
3400 cy 46'9| 469) oro 
3200 » 47°38! 47°38 foe) 
3000 ax 48°6| 48°6 o"o 
2800 ° 494) 494) oro 
2600 - 50°3| 50°3| oto 
2400 = ro 51°0| 5§1°0 oo 
2200 a & Pe GO A Os 7 oo 
2000 Ss S 52°5| 52°5 o°o 
1800 = 3 53°4| 53°4 o*o 
1600 8 iS 54°3| 54°3| oo 
1400 ° 55°2| 55°2 o*o 
1200 ee 56°0| 56:0 o"o 
roco 56°9| 56°9 oo 
800 a7 7 | Sf? | see 
600 58°6| 58° o"o 
400 59°51" 59°5 on 
200 60°5| 60°5 o"0 
° 61°5| 61°5 o"o 
July 17.—The results are dependent upon the observations before leaving the 
earth, joined to those taken at and above 3800 feet; but they accord with 
others under the same state of the sky, indicating an almost uniformly de- 
creasing temperature until the thick cloud was reached. 
July 30.—The fluctuations on this day are better shown here than in the 
preceding section ; there seem to have been no fewer than four or five dif- 
ferent strata, on this day, within 7000 feet of the earth, experienced during 
the ascent and passage of the balloon till the time of descent, which 
was rapid, and during which the increase of temperature was gradual 
throughout. 
