In 1839 was associated with Henry A . Munson in the development of cerography, a method of printing maps in color on the common printing press.
2.
Cerography was invented in the late 1830s by Sidney E . Morse, a son of Jedidiah Morse, and a younger brother of Samuel Morse; it was independently patented in England by Edward Palmer, who primarily conceived of it as an artistic medium.
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