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James E. Teschemacher
(1790-1835)

James Englebert Teschemacher was born in Nottingham, England on June 11, 1790, the son of Ann Saffory and John Roger Teschemacher. He emigrated to the U.S. in 1832, settling in Boston, and went into the mercantile trade. He joined the Boston Society of Natural History, a highly respected scientific organization which published many of his papers on mineralogy, geology, chemistry and botany. He was a frequent lecturer, and served as co-editor of Boston's Horticultural Register and Gardener's Magazine. In the 1840s he proposed the theory, largely rejected at first by the scientific community, that a fungus was responsible for the devastating potato blight. He was ultimately proved correct. He published Concise Application of the Principles of Structural Botany to Horticulture; Essay on Guano (1845); and a translation of Julius A. Stockhardt's Chemical Field Lectures. He died November 9, 1853, in Boston.

Canfield (1923) noted that Teschemacher's mineral collection was known to exist at least as early as 1854. It was said that John C. Trautwine of Philadelphia purchased much of it. Some specimens are also thought to have been acquired by the Boston Society of Natural History.

References:
WARREN, J. C. (1853) Notice of J. E. Teschemacher. Proceedings of the Boston Society of Natural History, 4, 393-394.
CANFIELD, F. A. (1923) The disposition of some American collections of minerals. Privately printed.
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