Experimental researches on the resistance of air
A 1917 technical report from the NASA Technical Reports Server, a scanned archive record rather than a trade book, presenting experimental researches on air resistance for engineers and aerodynamicists. Its pictures are plain line diagrams of logarithmic coordinate graphs with labelled axes, lettered points, dashed construction lines and fanned sets of curves, so a designer might take only their clean technical linework and rigorous grid structure as a graphic reference.
