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Displaying 61 - 73 of 73

Two Small pieces about a foot long and three or four inches diameter

Talk [talc], Chrystal

Rocks of Chrystals 15,c, 15,e, 15,f

Two pieces of Curious Iron Ore resembling pieces of roots of trees, polish on one side, So as to show very distinctly the concentrical veins of the wood

Asbestos des Montagnes de Suisse
Trans.: Asbestos from the mountains of Switzerland

Un peu d'asbest ou lin incombustible des anciens Trans.: A bit of asbestos or noncombustible flax of old

Kennel-coal [cannel coal] 63,a

Three fragments of Stalactites from a Cavern near Col. Isaac Zane's Iron Works at Marlboro' near Winchester Virginia

Two fragments of concretions of small pebbles of various sorts in a reddish cement

A piece of rich lead ore from Bedford County in this State at the foot of Bald Eagle mountain 250 miles from Philada belonging to Gen. Roberdeau

Lapis Calaminaris B, C

Copper Ores 6,d, 6,e, 6,f, 6,g, 6,h