the Lead Mines of Missouri, ^c. 71 



For the last three years, up to 1819 mchisive, the produce 

 of the mines was estimated at three milHon seven hundred 

 twenty-six thousand six hundred and sixty-six pounds per 

 annum of pig lead, which the author supposes to be not 

 more than one half what the mines are capable of yielding. 



The number of miners is between eleven and twelve 

 hundred, and the number of hands employed in labour at 

 different mines, is from twenty to two hundred and forty, 

 including in both cases persons of all descriptions. 



Many miscellaneous topics connected with the general 

 subject of his work, are introduced by Mr, Schoolcraft, 

 such as the sections relating to the manufactures, and uses 

 of lead, &;c. but it is not our object to advert to those topics. 



Among the miscellaneous mineral productions of the 

 western regions, there are some that are interesting, and it 

 will be seen from the author's table of minerals (p. 177) 

 that the list is various. There are several caverns which 

 .produce nitrate of potash by the usual treatment, and Ash- 

 ley^s Cove, about eighty miles from Potosi, is said to be 

 one of stupendous size, and to " afford native nitrate of pot- 

 ash in beautiful white crystals." 



Beds of chalk are mentioned as occurring on the west 

 bank of the Mississippi, about thirty-five miles above the 

 mouth of the Ohio. It is described as being of an excel- 

 lent quahty, and as containing flint in strata,* and some- 

 times in nodules. 



The novaculite is mentioned as occurring on Wachitta, 

 as described by Mr. Bringier in the present Number. 



Steatite exists in abundance at the Falls of St. Anthony, 

 on the Mississippi, and is used by the Indians for pipes. 



The fluate of lime near Shawneetown, was described in 

 the first volume of this journal. 



Among other minerals, Mr. Schoolcraft mentions chalced- 

 ony in several varieties, earthy oxid of lead, native copper, 

 alum, manganese, opalized and agatized wood, opal, jasper, 

 coal, gypsum, native epsom salts, pumice stone, agate, onyx, 

 burr mill stone, native iron, fee. for the localities and de- 

 scriptions of which we must refer to the book itself. 



Those facts of Mr. Schoolcraft's volume which relate to 

 statistical and political topics do not come within the plan 

 of these remarks. 



* May not (hi? be horvAove in veins? 



