Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 566
ely numbered. It is sometimes usual, at the completion of a railway, to make plans ofthe works as finished; and, if a profile of the line, to represent the differ- TOPOOKAPIIICAL DRAWING. 3G7 ent strata or rocks in the cuts, with their dip or inclination. This is moreproperly a geological profile ;… … dition. Figs I., II., III., lY., represent the primary, secondary, tertiary,and recent plutonic rocks. Fig. 1 represents the primary fossiliferousstrata; figs. 2, 3, 4, the secondary, tertiary, and recent strata. In the plotsof geological sections, it is especially requisite that the different…
