Voluntary Muscular work recorded and Measured

The student is fatiguing the muscles of his left hand ... (source: Physiology at Michigan, 1850-1923 by Horace W. Davenport)

Medical Graduating Class, University of Michigan, 1865-1866 session

Front scanned with and without mount, reverse identifies individuals on front... 1of3, 2of3, 3of3

Physicians' office attendants manual: Section for office work,

Mode of access: Internet.