An examination of phrenology : in two lectures : delivered to the students of the Columbian College, District of Columbia, February, 1837 / by Thomas Sewall.
An 1837 lecture series by Thomas Sewall, published in Washington City by Homans, critiquing phrenology for students of the Columbian College in the District of Columbia. The four plates are anatomical engravings of the skull and brain in sectional and interior views, with numbered leader lines pointing to parts. A designer could draw on their fine hatched shading and cross-section layouts for scientific diagrams of the brain and skull.
