Coombs' popular phrenology:
Coombs' Popular Phrenology, by F. Coombs, published by Fowler and Wells in New York and Boston in 1865, is a popular handbook teaching the phrenological reading of head shape and character to general readers. Its pictures are profile line engravings of heads with the skull and face outlined, showing the bumps and contours phrenologists claimed to read, which a designer might use for vintage diagram styling, hatched linework, and labelled anatomical profiles.
