Kushlan, Max. [from old catalog] · Chicago, The Branch publishing company · leaf 44
hance scrap ofpaper such as a back of an envelope and a stub of apencil to illustrate his idea with an accurate sketch,which would be intelligible to himself and others whenthe occasion arrives for making use of it. In all suchcases of emergency the modern engineer must trainhimself to make these… … 40 FREE HAND DRAWING equipment some kind of a memorandum book of asize convenient to be carried in the pocket, yet suffi-ciently large to allow enough space for notes andsketches. A loose-leaf form is to be recommendedsince the leaves can later be thrown away after theyhave been copied in a more…
Mechanical drawing
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