384 Miscellanies. 
ore is sorted from the copperas ore, by men with hammers—the 
copper ore appears to be in abundance, yet it bears but a small pro- 
portion to the copperas ore with whieh it is connected ; after being 
sorted from the copperas ore, it is piled in heaps of from eighty to 
one hundred tons on a layer of wood and charcoal; the wood and 
coal are then set on fire, and owing to the sulphur contained in the 
ore, the whole becomes readily ignited, and in this manner it is al- 
lowed to roast for about one month. It is then taken to the smelting 
furnaces, of which they have two in operation, and are building two 
more, the whole about one mile fromthe mine. Here the ore passes 
through three operations of smelting—the first does not produce any 
copper; what runs out of the furnace is broken up and passes through a 
second process of roasting, and is again smelted, which produces some 
copper—ihe slag is again broken up and roasted as before—the third 
operation of smelting obtains all the copper except about half per 
cent. which remains in the slag, and this slag is thrown away. The 
ore has yielded thus far about ten per cent. ‘The fuel is charcoal. 
2. Scientific names of certain plants. 
Philadelphia, Oct. 31, 1831. 
To tHe Eprror.—Dear Sir—I annex the popular names of sev- 
eral plants, natives of the United States, with the view of asking the 
favor of some of your botanical correspondents to furnish their sci- 
entific appellations. 
Physic Root, or Indian Olive of the South. 
Tallow Nut of the South. 
Emetic Bean of Louisiana. 
Beaver Root. 
Silver Root. 
Abelo, or Trumpet Weed. 
Blue Paint Root. 
Alexanders, an umbelliferous plant. 
9. Snakebite, or Saceahjara of the West. 
10. Shittim Wood of Canada. 
11. Yellow Root. Schinga of the Indians; vernal yellow blossoms; 
like those of Blood Root. 
BD st OB oo tO 
