Table for computing differences of level from a?igles of elevation or depression 
(applicable to scale of i : 30000 ). 
Difference of level— I + Bhi + hi for an S le8 of elevation. 
1 inference oi level — + ^ {<a angleg 0 f depression. 
D= distance in scale divisions ^ inch each; a = angle of elevation or depression; hi — 50 feet X tan «• 
h 2 .— correction for curvature and refraction. 
Argument for 7i, is a; argument for h 2 is D. 
- i - 
hi iu feet. 
D 
h 2 
I) 
h 2 
t 
0 ° 
1 ° 
2 ° 
3° 
4° 
5° 
6 ° 
7° 
Scale 
divisions. 
Feet. 
Scale 
divisions. 
Feet. 
0 
.000 
.873 
1.746 
2. 620 
3.496 
4.374 
5. 255 
6.139 
000 
0 
1080 
60 
1 
.014 
.887 
1.760 
2.635 
3.511 
4.389 
5. 270 
6.154 
130 
1 
1089 
61 
2 
.020 
. 902 
1.775 
2. 649 
3. 525 
4.403 
5. 284 
6.169 
107 
2 
1008 
62 
3 
. 043 
.910 
1.789 
2.664 
3.540 
4.418 
5. 299 
6.183 
242 
3 
1107 
63 
4 
.058 
.931 
1. 804 
2. 678 
3.555 
4.433 
5.314 
6.198 
270 
4 
1116 
64 
5 
.072 
. 945 
1.819 
2. 693 
3.569 
4.447 
5.328 
6.213 
312 
5 
1124 
65 
<5 
.087 
.960 
1.833 
2.708 
3.584 
4.462 
5.343 
6.228 
342 
6 
1133 
66 
7 
. 102 
.974 
1.848 
2.722 
3.598 
4.477 
5.358 
6.242 
300 
7 
1141 
67 
8 
.116 
.989 
1.862 
2.737 
3.613 
4. 491 
5.373 
6.257 
304 
8 
11 50 
68 
' 9 
.131 
1.003 
1.877 
2.751 
3. 628 
4.506 
5.387 
6. 272 
418 
9 
1158 
69 
10, 
.145 
1.018 
1.891 
2.766 
3.642 
4. 521 
5.402 
6.287 
441 
10 
1167 
70 
11 
.160 
1.033 
1.906 
2.781 
3. 657 
4. 535 
5.417 
6.301 
462 
11 
1175 
71 
12 
.174 
1.047 
1.921 
2.795 
3.672 
4.550 
5.431 
6.316 
483 
12 
1183 
72 
13 
.189 
1.062 
1.935 
2.810 
3.686 
4. 565 
5.446 
6.331 
503 
13 
1191 
73 
14 
.203 
1.076 
1.950 
2. 824 
3.701 
4. 579 
5.461 
6. 346 
522 
14 
1199 
74 
15 
.218 
1.091 
1.964 
2.839 
3.715 
4.594 
5.476 
6.361 
540 
15 
1208 
. 75 
1(1 
.232 
1.105 
1.979 
2.854 
3.730 
4. 609 
5.490 
6.375 
558 
16 
1216 
76 
17 
.247 
1.120 
1.993 
2. 868 
3.745 
4. 623 
5.505 
6. 390 
575 
17 
1224 
77 
18 
.262 
1.134 
2.008 
2.883 
3.759 
4. 638 
5.520 
6.405 
502 
18 
1231 
78 
19 
.276 
1.149 
2.023 
2.897 
3.774 
4. 653 
5.535 
6.420 
608 
19 
1239 
79 
20 
.291 
1.164 
2. 037 
2.912 
3.789 
4. 667 
5.549 
6. 434 
624 
20 
1247 
80 
21 
.305 
1.178 
2.052 
2.927 
3. 803 
4. 682 
5.564 
6.449 
630 
21 
1255 
81 
22 
.320 
1.193 
2. 066 
2.941 
3.818 
4. 697 
5.579 
6.464 
654 
22 
1263 
82 
23 
.334 
1. 207 
2.081 
2. 956 
3.832 
4.711 
5.593 
6.479 
660 
23 
1270 
83 
24 
.349 
1.222 
2.095 
2.970 
3.847 
4. 726 
5.608 
6. 694 
683 
24 
1278 
84 
25 
.363 
1.236 
2.110 
2.985 
3.862 
4.741 
5. 623 
6.508 
697 
25 
1286 
85 
26 
.378 
1.250 
2.125 
2.999 
3.876 
4.755 
5. 638 
6.523 
711 
26 
1203 
86 
27 
.392 
1.265 
2.139 
3.014 
3.891 
4.770 
5.652 
6. 538 
725 
27 
1301 
87 
28 
.407 
1.280 
2.154 
3.029 
3.-906 
4.785 
5.667 
6.553 
738 
28 
1308 
88 
29 
.422 
1.294 
2.168 
3.043 
3.920 
4. 800 
5.682 
6.568 
751 
29 
1315 
89 
30 
.436 
1.309 
2.183 
3.058 
3.935 
4.814 
5.697 
6.582 
764 
30 
1323 
90 
31 
.451 
1. 324 
2.197 
3.072 
3.949 
4. 829 
5.711 
6.597 
776 
31 
1330 
91 
32 
.465 
1.338 
2.212 
3.087 
3.964 
4. 844 
5.726 
6. 612 
780 
32 
1337 
92 
33 
.480 
1.353 
2.227 
3.102 
3.979 
4. 858 
5. 741 
6. 627 
801 
33 
1345 
93 
34 
.494 
1.367 
2.241 
3.116 
3.993 
4.873 
5.755 
6.642 
813 
34 
1352 
94 
35 
.509 
1.382 
2. 256 
3.131 
4.008 
4.888 
5.770 
6.656 
82’5 
35 
1359 
95 
36 
.523 
1.396 
2.270 
3.145 
4. 023 
4. 902 
5.785 
6. 671 
837 
36 
1366 
96 
37 
1.411 
2.285 
3.160 
4.037 
4. 917 
5.800 
6. 686 
848 
37 
1373 
97 
38 
.552 
1.425 
2. 299 
3.175 
4.052. 
4. 932 
5.814 
6. 701 
860 
38 
1380 
98 
39 
.567 
1.440 
2.314 
3.189 
4.067 
4.946 
5. 829 
6. 716 
871 
39 
1387 
99 
40 
.582 
1.455 
2.329 
3.204 
4. 081 
4.961 
5.844 
6. 730 
882 
40 
1304 
100 
41 
.596 
1.469 
2.343 
3.218 
4. 096 
4. 976 
5. 859 
6.745 
893 
41 
1401 
101 
42 
.611 
1.484 
2.358 
3. 233 
4.110 
4. 990 
5. 873 
6. 760 
904 
42 
1408 
102 
43 
.625 
1.498 
2.372 
3.248 
4.125 
5. 005 
5.888 
6.775 
014 
43 
1415 
103 
44 
.640 
1. 513 
2.387 
3.262 
4.140 
5.020 
5.903 
6.790 
025 
44 
1422 
104 
45 
.654 
1.527 
2.401 
3.277 
4.154 
5.034 
5.918 
6.804 
935 
45 
1420 
105 
46 
.669 
1. 542 
2.416 
3.292 
4.169 
5.049 
5.932 
6.819 
956 
46 
1436 
106 
47 
.683 
1.557 
2.431 
3.306 
4.184 
5.064 
5.947 
6.834 
046 
47 
1442 
107 
48 
.698 
1.571 
2.445 
3.321 
4.198 
5.079 
5. 962 
6. 849 
066 
48 
1440 
108 
49 
.712 
1.586 
2.460 
3. 335 
4.213 
5.093 
5.977 
6. 864 
076 
49 
1456 
109 
50 
.727 
1. 600 
2.474 
3.350 
4.228 
5.108 
5.991 
6. 879 
986 
50 
1462 
110 
51 
.742 
1.615 
2.489 
3.365 
4. 242 
5.123 
6. 006 
6.893 
096 
51 
1460 
111 
52 
.756 
1.629 
2. 503 
3.379 
4. 257 
5.137 
6.021 
6.908 
1006 
52 
1476 
112 
53 
.771 
1.644 
2. 517 
3.394 
4. 272 
5.152 
6. 036 
6. 923 
1015 
53 
1482 
113 
54 
.785 
1.658 
2.533 
3.408 
4.286 
5.167 
6.050 
6.938 
1025 
54 
1480 
114 
55 
.800 
1.673 
2.547 
3: 423 
4.301 
5.181 
6. 065 
6. 953 
1034 
55 
1495 
115 
56 
.814 
1.688 
. 2.562 
3.438 
4.316 
6.196 
6. 080 
6. 967 
1043 
56 
1502 
116 
57' 
.829 
1.702 
2. 576 
3.452 
1.330 
5.211 
6.095 
6.982 
1053 
57 
1508 
117 
58 
.843 
1.717 
2. 591 
3. 467 
4.345 
5.226 
6.109 
6. 997 
1062 
58 
1515 
118 
59 
.858 
1.731 
2. 606 
3.481 
•4. 360 
5.240 
6.124 
7.012 
1071 
59 
1521 
119 
60 
.873 
1. 746 
2.620 
3.496 
4.374 
5.255 
6.139 
7.027 
1080 
60 
1527 
120 
6—613 
-safe' 
Index* Page 
Adolphus* Tenn#: 
section across Ordovicic belt 1 mile 
SS* of P.0., Loc*5? * * . . 51 
tried to get section of Adolphus belt 53 
Athens shale: 
tit -L»QQ & & u • 55 
in section at Loos*61—65,east of Athens 61 
good exposure of east of Williamsburg 63 
at Buzzard Boost Gap* Logs *107*108 . 93 
indicates shorewash during erosion 
of Ohilhowee,Loc*70,Benton south 
to Ocoee River * 65 
Athens , Tenn*: 
east of f hoc#64 59 
Athens to Benton,Loe*66 * • • * 63 
Bangor limestone - at Loc*8S, gully in road¬ 
side around point of Lookout Mt* • * 83 
Bassler,R»S* - sent hoc #22c,Chickaraauga 
series ,Jacksboro, Tenn •, t o . 19 
Bays Is#: 
neither Bays nor Rockford is between 
Loc*10 and 13, Clinton to Robertsville 9 
above shales* hoc*24,Knoxville * . 23 
yellowish and brown shales holding Lor¬ 
raine fossils pass into shaly Bays, / 
then into Rockwood series,hoc.37 
Clinton to Oliver Springs * . * 
layers in bluff north of Pinhook Land¬ 
ing, east side Tennessee River,pre¬ 
cisely like Bays . 43 
layers at hoc#75, Cleveland to Oltewah, 
look like Bays * 71 
at Logs *84-87,section across eastern fork 
Chattanooga band Chickamauga . . 81 
t 5 
33 
