A treatise on levelling, topography, and higher surveying (1876)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, b. 1840, ed · New York, D. Appleton and company · leaf 118
ocks.Cultivated land is shown by parallel rows ofbroken and dotted lines, as in the figure,representing furrows. Crops are so tempo-rary that signs for them are unnecessary, -though often used. They are usually imita- B^~~-~I-^~E-^s: tive, as for cotton, sugar, tobacco, rice, vines, : -■* hops,… … and indentations, and as close to it as possible; then anotherparallel line a little more distant; then a third still more dis- 100 LEVELLING, TOPOGRAPHY, AND HIGHER SURVEYING. taut, and so on, as in Fig. 117. If these lines are drawn fromthe low-tide mark, a similar set may be drawn between…
Surveying
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