Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 106
.4 0.7 21 9 0 2 21 6 0.0 22.2 22.7 23 2 24.0 25 0 ft 1.0 0.8 11 0.5 0.3 28 6 28.5 0 1 0.0 29 0 28.8 29.3 39.6 30.0 6 It must be borne in mind in calcula- B = -^- and C = 0. ting these tables that the greatest possible Also, when c has its minimum value, 0, value of cis — , which distance, laid off… … The construction of the diagram from these tables is shown in Fig. 4, a reduc- tion to half scale of a side-hill diagram — a right line parallel with the axis of D for a road having 14 and 18 ft. road-beds — is the highest, and the flat and nearly and all slopes 1| to 1. To construct this parallel…
Engineering
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