Davies, Charles, 1798-1876 · New York, Cincinnati [etc.] American book company · leaf 294
xcavation and partly in embank-ment. The ratio of slope is 2 to 1. The centre cut is 2.4.The centre reading is 7.9 ; height of instrument, 10.3. The reading at H, is 6.3; at E, 6.1; at S, 5.4. Thepoint, K, is easily found in practice, it being that point onthe surface line where the reading of the… … Fig. 149. Diet. Left. Centre Cat. Right. 4.99.8 4.2A 4.03.8 2.4 0 A -2.9A — 5.511 325. In the following example, there is a regular rise in thesurface-line of one foot in eight. The ratio of slope in theexcavation is to be 1J to 1; height of instrument, 14.2. In seeking for the position of the…
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