Portrait of Louis Agassiz. Mezzotint by John Sartain. Mid XIX C.

Artist: after a photograph by Whipple & Black. Boston.Engraver: John Sartain (1808 – 1897). He was an English-born American artist who pioneered mezzotint engraving in the United States.Title: Louis Agassiz. Jean Louis Rodolphe Agassiz (1808-1897), was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history.Titled, Dated, and Signed in plate: engraved by J. Sartain - Phila from a photograph by Whipple & Black. Boston. Louis Agassiz. Engraved for the Eclectic Magazine. (Last line has been cut off and shown here for reference purposes only).Dimensions: 8" x 5". Edition: Eclectic Magazine, 1857(?). Date: mid 19th century.Materials and Techniques: Mezzotint, etching, engraving, stipple and photomechanical texture on off-white wove paper.Provenance:  The Estate of George "Yorgo" Demetrakopoulos; professor, assistant director of the Medieval Institute, and assistant to the dean at Western Michigan University, Kalamazoo, Michigan, from