- 
can | 
- the volume of “Meteorological and Physical Tables 
158 A. Guyot on the Appalachian Mountain System. 
onl 
5 
Pe) 
09 
s 
ct 
<< 
a 
“ 
Rage 
2) 
o 
3° 
mh 
et 
ps 
a>) 
b> 
gs 
i) 
— 
= 
ot 
ede 
2 
B 
oO 
=2 
i) 
mie 
5 
@ 
™” 
ge) 
oO 
o. 
= 
S 
oa 
o 
= 
fey 
= 
identifying them in every case are by no means numerous. B a 
sides all this, if the relative height of different culminating pomts . 
has been determined correctly, there still remains, in 0 erto. 
ished within the last ten years. Excellent barometers are 10W 
made in America and are within the reach of any willing ob- 
server. The railroad surveys cross all the pritisipat wesipa and 
These various difficulties, or at least some of them, have dimin- 
2 
3 
Es 
. 
E 
oO 
ie 
85 
E 
3 
5, 
S 
3 
oO 
ye me! 
scales, partly compiled and partly computed by the 
been published by the Smithsonian Institution, and 
observer of the most tedious and time-consuming portion of his 
hts to th 
ae 
