Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 252
11.1, which is very nearlyright: -j^^y is therefore the record for the location of S. * The readings and distances in this example have heen made to correspond to arise of one foot in five from H to S. The exact record for S is 2u:i:f• SEC. B\] CROSS-SECTION LEVELLING. 249 The completed notes for… … us Dist. Left. Centre Cut. Pdght. - 15.8 - 12.823.7 A -11.7 - 8.6 - 8.4A 12.6 The filling at the centre is assumed to be 11.7 ft., whichappears in the column of centre cut, with its appropriatesign. The reading of the rod, at the centre, as shown by the dia-gram, is 7.2. The sum of the reading and…
Surveying
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