three pounds of nitre, Mr. Lynch having made about looolb.
of the fait from it, configned it to fome others, who have fince made To,ooolb.
L 64 ] They have done this by purfuing the cave into the hill, never trying a fecond time the earth they have once exhaufted, to fee how far or foon it receives another im- pregnation. At lead fifty of thefe caves are worked on the Greenbriar. There are many of them known on Cumberland river.
The country weflward of the Alleg- hany abounds with fprings of common fait. The moft remarkable we have heard of are at Bullet's lick, the Big bones, the Blue licks, and on the North fork of Hol- fton. The area of Bullet's lick, is of many acres. Digging the earth to the depth of three feet, the water begins to boil up, and the deeper you go, and the drier the weather, the ftronger is the brine. A thoufand gallons of water, yield from a bulhel to a bulhel and a half of fait, which is about 8olb. of water to lib. of fait; but of fea- water 251b.