Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 184
Seetiort tArou^AAB Varied materials enter into the composition of structures and machines, or formtheir supports, which are to be represented by the draughtsman. That of the earths androcks, in their natural position, areshown under the head of Topo-graphical Drawing, or by a closerimitation of…
Mechanical drawing
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