Front cover image for The new method of inoculating for the small-pox : Delivered in a lecture in the University of Pennsylvania, on the 20th of February, 1781.

The new method of inoculating for the small-pox : Delivered in a lecture in the University of Pennsylvania, on the 20th of February, 1781.

Benjamin Rush
Microform, English, M. DCC. XCII. [1792]
Printed and sold by Parry Hall, no. 149, Chesnut Street, near Fourth Street., Philadelphia, M. DCC. XCII. [1792]