A treatise on surveying and navigation: uniting the theoretical, practical, and educational features of these subjects (1857)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst; Toledo, Anderson, Burr, & co. · leaf 167
the minus sign, that is, getting below our ruled paper inmaking a profile of the vertical section. Where the line is to be generally ascending, we assume a smallconstant, where generally descending a large one ; taking care in allcases to have it so large as not to run it out. At each and every… … 11 10 164 SURVEYING. where these levels were taken, with the exception of the exaggera-tion of the roughness caused by the difference of scales for the baseand perpendicular lines. From one station to another is 200 feet ;we have made 10 feet occupy more space in the perpendicular direc-tion than…
Surveying · Navigation
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