Lectures on phrenology : delivered before the Young Men's Association for Mutual Improvement of the City of Albany / by Amos Dean.
An 1834 lecture series on phrenology by Amos Dean, published in Albany, New York, for members of the Young Men's Association for Mutual Improvement. The plates show the anatomy of the skull and face with the scalp divided into numbered organ regions. A designer might borrow the clean outline profiles and the numbered grid of labelled zones as a diagram device.

