Journal of the Franklin Institute; devoted to science and the mechanic arts
A technical periodical issued by the Franklin Institute in Philadelphia from 1826, reporting patents, machinery, and applied science to engineers, manufacturers, and mechanics. The wood-engraved plates are sectional diagrams of boilers, steam cylinders, furnaces, and flywheels, drawn in thin outline with hatched masonry, letter keys, and small flame shapes—useful for schematic line work and labelled cutaway motifs.
