Table for computing differences of level from angles of elevation or depre 
{applicable to scale of i : 30000 ). 
ssion 
„ , , ( 4 . D/t, I- ft... for angles of elevat ion. 
Difference of level= j + h for ang i 08 Q f depression. 
D = distance in scale divisions B V inch each; a = auglo of elevation or depression; ft,=50 feet X tan a; 
li a .—correction for curvature ami refraction. 
Argument for ft, is a; argument for ft 2 is D. 
ft, in feet. 
0 C 
.000 
.014 
.029 
1 
.873 
.887 
. 902 
2 ° 
1.746 
1.760 
1.775 
3° 
4° 
5° 
6 ° 
2.620 
2.635 
2.649 
A® * 
3.496 
3.511 
3.525 
n C4D 
4.374 
4.389 
4.403 
A /lift 
5.255 
6.270 
5.284 
6 299 
7° 
6.139 
6.154 
6.169 
>; 183 
D 
Scale 
divisions. 
000 
1 30 
107 
94*2 
Feet. 
Scale 
divisions. 
10H0 
10S0 
1008 
1107 
h 
91 
JL 
99 
Dove limestone heavy at Loc.87.Ringgold 
Dutch Valley - Chickamauga hand western . . 33 
edge of, Loc.36 . * • * 
Elk Valley: 15 
Rockwood of described • • • ‘ * 15 
Jacksboro to • • •. 17 
Chickamauga not found m • 
27 at 
Fault between Locs*l£ and 13, Clinton to 
Bobertsville • 
67 
Fitserton,Tenn®, Loc®72 * 
Fort Payne chert: ^ ^ 
at Swagerty Cove.* . 
at Loc .88 .gully in roadside aroung point ^ 
of Lookout lit. 
Fourmile Creek.up, near ^enton.Loc.68 ♦ * 65 
Georgia - Locs.97-105, hill 1 mile east o. ^ 
Ringgold . 
Glade, Lebanon Is. - good one at Loc.81, one- 
third mile before turning into Mahon Gap 
road. 
Rammer lost between Loc.90 and Richmond^ . # 8 5 
exposures . 
Harriman^enn®: 33 
Loc.38 of Chickamauga series • • • 
trip to Harriman.Rockwood,Spring City,and 
Oliver Springs from Clinton ... 
Harriman to Spring City,Locs. 39-41 
Hayes, C.W. - unites passage beds with Chickamauga 5 
