RECORD: Darwin, C. R. [c.1840] Curvature of Earth [table of values]. CUL-DAR50.C23. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed and edited by John van Wyhe 2.2026. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. Items in CUL-DAR50.C relate to the geology of Glen Roy "Glen Roy Scraps".
[C23]
Curvature of Earth.
Distance |
Dip |
Distance |
Dip |
Miles |
Feet |
Miles |
Feet |
1/2 |
0.2 |
6.30 |
30.1 |
1 |
0.758 |
6.85 |
35.5 |
2 |
3.0 |
7.20 |
39.3 |
4 |
12.1 |
7.65 |
44.3 |
5 |
18.9 |
7.75 |
45.5 |
6 |
27.3 |
8.20 |
50.9 |
7 |
37.1 |
8.40 |
53.5 |
8 |
48.5 |
9.25 |
64.9 |
9 |
61.4 |
12.10 |
111.0 |
10 |
75.8 |
12.70 |
122.3 |
11 |
91.7 |
18.50 |
259.5 |
12 |
109.1 |
|
|
13 |
128.1 |
|
|
14 |
148.6 |
|
|
15 |
170.5 |
|
|
1.21 |
1,1 |
|
|
1.48 |
1.6 |
|
|
1.95 |
2.8 |
|
|
2.04 |
3.0 |
|
|
2.60 |
5.1 |
|
|
2.95 |
6.6 |
|
|
3.40 |
8.7 |
|
|
3.60 |
9.0 |
|
|
4.30 |
14.1 |
|
|
4.65 |
16.4 |
|
|
4.85 |
17.8 |
|
|
4.92 |
18.3 |
|
|
5.25 |
20.5 |
|
|
5.50 |
22.9 |
|
|
5.70 |
24.6 |
|
|
6.15 |
28.7 |
|
|
|
|
|
|
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 8 February, 2026