This series contains a group of photographs printed using a variety of techniques.

This series contains a group of photographs printed using a variety of techniques.

This series contains a group of photographs printed using a variety of techniques.

This series contains a group of photographs printed using a variety of techniques.

This series contains a group of photographs printed using a variety of techniques.

Lochman. a doctor in Bethlehem, Pennsylvania, created this album of 220 cyanotypes of live plants, indigenous and introduced, growing without protection in the United States. Album has a manuscript title-page, Preface, index and captions.

Given to the Academy by Lochman on Dec. 21, 1896.

Collection contains materials related to botany, photography, printing, advertising, and patent law.