Table for computing differences of level from angles of elevation or depression 
(applicable to scale of i : 30000 ). 
Difference of levels -f + + h f or iU, ^ lc8 °f ® levat o i ?“- 
\— I) A, -f- h -2 for angles of depression. 
D=distance in scale divisions g 1 ^ inch each; a = augle of elevation or depression; 7<,=50 feet X tan fi¬ 
ll 2 -—correction for curvature and refraction. 
Argument for h , is a; argument for h 2 is D. 
hi in feet. 
I) 
h* 
D 
f 
0° 
1° 
2 ° 
3° 
4° 
5° 
6 ° 
7° 
Scale 
divisions. 
Feet,. 
Scale 
divisions. 
0 
.000 
.873 
1.746 
2. 620 
3.496 
4. 374 
5.255 
6.139 
000 
0 
1080 
1 
.014 
.887 
1.760 
2.635 
3.511 
4.389 
5.270 
6.154 
130 
1 
1080 
2 
.020 
. 902 
1. 775 
2.649 
3. 525 
4.403 
5.284 
6.169 
107 
2 
1008 
3 
A 
h-iO 
1_m a 
1 *7CO 
O *5124 
•-! K40 
4.418 
5.299 
6.183 
242 
3 
1107 
* ■* -i a! 
Chattanooga,?enn*; 
quarry 8 miles east of,Loc *82 * * * « 
Lookout Valle?/ near,Loc*91,corrected and 
amended section from Trenton Is* up to 
first iron bed of Rockwood * * 
to Lookout Valley abd return,Locs*88-92 * 
to Ringgold,Ca. ,west side of creek, 
Locs * 915-96 a ****♦•« 
Chattanooga band Chickamauga ls* f section 
across eastern fork of,Locs*84-8? 
Chester Is®: 
numerous exposures of Chester look like 
Chickamauga,probably mistaken for * 
extends two-thirds up Pine Mt*,probably 
fault between and repetition * 
Chester ls*and shale of horizon at Sloans 
Valley ,Ky* t l&t*Loo*20,Klk Valley * 
at Loc*88,gully in roadside around point 
of Lookout lit* 
Chickamauga: 
section at Clinton,Tenn,Loc*5 
numerous exposures of Chester probably mis¬ 
taken for at 31k Galley * 
base of comes in,Loc.26,Knoxville 
in section across Baccoon Valley along 
C1 i n t o n-Knoxvi lie road (Chickamauga band) 
Chickamauga band,west edge of Dutch Valley, 
Loc*36 •••••••• 
Chickamauga band southeast of Athens,Locs* 
61—63 ***••••• 
Chickamauga area,entering Bossville and 
turning east into Ringgold road, Loc* 
93 ••••••*** 
Chickamauga Park, Loc*95 * 
Chickamauga-Rockwood boundary, Loc*89 • 
79 
82 
83-85 
87-89 
81 
