Langenheim Brothers. Kirkbride-Langenheim Collaboration: Early Use of Photography in Psychiatric Treatment in Philadelphia by George S. Layne.

Offprint from The Pennsylvania Magazine of History and Biography, Volume CV, Number 2, April 1981. Wraps, 22 pages, 5 illustrations, including portraits of Dr. Thomas Story Kirkbride, resident physician at the Pennsylvania Hospital for the Insane, and the photographers William Langenheim and Fredrick Langenheim of Philadelphia. [The Kirkbride Archives at Pennsylvania Hospital includes a large quantity of lantern slides, some produced by the Langenheims beginning in 1851, used to entertain the patients. This pamphlet was reissued in 1994 by the American Psychiatric Association.] Very good, with a small rectangular stain on back cover, probably from acid migration.