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Cornelius, Robert
American (1809-1893)

TITLE ON OBJECT: Prof. Martin Hans Boyč

May 1840
daguerreotype
8.1 x 6.6 cm., 1/6 plate
Gift of 3M Company: ex-collection Louis Walton Sipley
GEH NEG: 24906
77:0242:0006

BIBLIOGRAPHIC REFERENCE (SUBJECT NOTE): Subject Note: Martin Hans Boyč (1812-1907).//

EXHIBITION HISTORY:
"An American Century of Photography, 1840-1940: Sel. from Sipley/3M Col", US, NY, Rochester, GEH - Brackett Clark Gallery, May 5 - October 1, 1978. (Traveled).//
"Reflections in a Glass Eye: Works from the International Center of Photography", US, NY, New York November 3, 2000 - March 18, 2001.//

NOTES: Catalogued 10/84, DZ. Martin Hans Boyč, December 6, 1812, Copenhagen, Denmark - March 6, 1907, Coopersburg, Pennsylvania. Boyč emigrated to the US from Denmark in 1836. He worked as a geologist and chemist on a geological survey of the anthracite coal regions in Pennsylvania and as a chemist at the State Laboratories in Philadelphia (208 Chestnut St) before receiving his MD degree from the University of Pennsylvania in 1844. In 1847 he invented a process of refining cottonseed oil which he later manufactured on a large scale. Other researches included an analysis of concretion from a horse's stomach and analysis of Chinese artifically colored tea. In 1851 he was Chair of Chemistry in Central High, Philadelphia, but resigned in 1859 because of poor health. [Smith, Edgar F., --Martin Hans Boyč, Chemist.-- Philadelphia, 1924]

SUBJECT: portrait, ident / Boyč, Martin Hans, Prof.

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