Books by Benjamin Henfrey

3 books found

A plan with proposals for forming a company to work mines in the United States

A plan with proposals for forming a company to work mines in the United States

17973 ed.
Philadelphia, Feb. [blank], 1795

Philadelphia, Feb. [blank], 1795

17953 ed.
A plan with proposals for forming a company to work mines in the United States, and to smelt and refine the ores, whether of copper, lead, tin, silver, or gold

A plan with proposals for forming a company to work mines in the United States, and to smelt and refine the ores, whether of copper, lead, tin, silver, or gold

17971 ed.