The formation of ice on airplanes
A 1936 technical report on aircraft icing, issued through the NASA Technical Reports Server as a scientific paper for aviation meteorologists and pilots. Its pictures are black-and-white weather charts, pressure and temperature maps, and cross-section diagrams showing warm and cold air masses, fronts, and super-cooled rain. A designer could take from them the clean hatched and stippled shading, contour lines, and labelled diagrammatic style of early scientific cartography.
