First Edition. pamphlet. 60 pages. 4to, old plain wrappers; first and last leaves browned. Paris, 1812.
A paper read at a meeting of the Institut Imperial de France, on the water content, specific gravity, heat of combustion etc. of wood. By the indefatigable American-born inventor, who served as military commander of the elector of Bavaria and is known for contributions as diverse as the drip coffee pot, the photometer, and the Rumford lamp. "He attempted measurements [of calorific value] over a period of twenty years before he published his results in 1812. They were not the first in the field but they were without doubt better than any previously made." -- Sparrow, Count Rumford of Woburn, Mass., p. 243. Only 2 copies in NUC.