Phrenology, or The doctrine of the mental phenomena
A phrenology treatise by Johann Gaspar Spurzheim, published in Boston in 1832 by Marsh, Capen and Lyon for students and readers of the mental science. Its plates show engraved and stippled human heads in profile and three-quarter views, with numbered lines marking faculty locations, and a designer might take from them the stipple shading technique and the close, expressive rendering of eyes, noses and hair.
