Through the Opticke Glass

The Opticke Glass of Humors was written by Thomas Walkington, an educated reverend.  This is the first in the collection (chronologically) to be on a relatively unscientific topic.  At least the subject of bodily fluids and the balance of humors has since been deemed unscientific.  Walkington studied and worked as a fellow at Cambridge.

In 1664, this edition was printed in London for G. Dawson.