Essays on phrenology : or an inquiry into the principles and utility of the system of Drs. Gall and Spurzheim, and into the objections made against it
George Combe's 1822 Philadelphia treatise defending the phrenology of Gall and Spurzheim, printed for H. C. Carey and I. Lea, aimed at readers interested in the brain and mental disorders. Its plates show engraved brain convolutions and skulls numbered by faculty region, with lettered and dashed guide lines; a designer might borrow the fine hatched shading, the stippled bone outlines, and the sepia tint of the paper for an antique scientific diagram look.
