coe ants heli a a cediera apes ie tamer het \ reece lk yey a ie: 
62 EXPLORATION OF THE COUNTRY BETWEEN 
TABLE VII. 
Reduced barometric readings, from which the altitude of Fort Pierre is computed. 
Barometer No. 1014. 
1855. 
July 
3 
August 
ao i 
3 
‘ : 
4 | Mean... : 
Corresponding mean air temperature 77° 
TABLE IX. 
: Daily curve of pressure and the corrections to be applied to the readings at the several hours. 
: 5 a.m 28.485 1.000 
g 6 a.m -495 +.005 
: be m -505 +.019 
' 8 a.m e515 -029 
a 9am 525 -039 
: 10 a.m -540 .054 
| 2 bts m -b5D° | 044 
2m -500 | | -014 
2 . om A488 | + .002 
3 p.m =~ 
4p. m 
5 p.m 
6 p.m 
7Tp.m 
&8p.m 
9 p.m 
10 p.m 
3 ia at re a es 3 . rer 
eR GUAR RRR TSO pe errs — saeant: Stes ee Maen SAT 
