The Microscope and Microscopical Technology. A Text-Book For Physicians and Students. by Dr. Heinrich Frey, ... . Translated From the German and Edited ... Wood, and Containing the Price-Lists of theHeinrich Frey · First published 2006Open the Tome
Notes on the Twigs of the Tree of Heinrich (Henry) Frey, 1663-2003Paul Eugene Frye · First published 2003Open the Tome
Hermann Heinrich Frey, Superintendent in SchweinfurtChristian Heinrich Sixt · First published 1870Open the Tome