1891.] NEW YORK ACADEMY OF SCIENCES. 63 



twenty-five ounces; fifteen tons, one hundred and nineteen 

 ounces; and twelve tons, ninety-five ounces. The lead varied 

 from twenty to seventy per cent. Daring 1890 considerable 

 more was shipped. 



The deepest mine in the camp is only one hundred and thirty- 

 two feet deep, and, as all the ore has to be packed down at pre- 

 sent, and the expenses of getting to smelters in the absence of 

 railway transportation are so great, it is being piled up at the 

 mines, awaiting further development. 



Ascending the mountain, I first examined the ''Jeff Davis" 

 claim, which is about seven hundred feet above the level of the 

 lake. The vein is quite well defined, showing eighteen inches 

 of ore in mica schist. The pure galena carries about twenty 

 ounces of silver to the ton. This vein is m the first lode from 

 the lake, at a height of about eleven hundred feet above it. In 

 the second lode is the *' Spokane," showing a twenty-six inch 

 -vein of galena in mica schist, the pure galena carrying about 

 forty ounces of silver to the ton. Tne gangue is quartz, and 

 a considerable amount of iron pyrites is visible, but only a few 

 feet of shaft have been sunk on the vein. On this same lode 

 are several extensions more or less developed. Following up this 

 trail, I next came to the " Sunlight," at an elevation of nine- 

 teen hundred feet, and in the third of the main lodes. This 

 is in the limestone, and shows considerable development, the 

 ore being more or less oxidized, the mineral body being twenty 

 inches in diameter, uncovered for some distance, and the clear 

 galena assaying sixty ounces of silver. 



There are several more claims on this lode, with more or less 

 development. In the fourth lode I next looked at the " No. 

 1," at an elevation of twenty-five hundred feet above the lake. 

 Considerable work has been done. The ore body is large, se- 

 lected samples showing one hundred and fifty-seven ounces of 

 silver to the ton. The mineral, partly carbonate, partly galena, 

 occurs in grayish limestone and is uncovered for several hun- 

 dred feet. The ore is very friable and decomposed at the sur- 

 face, but sulphurets and wire silver are found at deptii. 



There are a number of other locations on this lode, but I did 

 not visit them. The highest claim is the " Sky Line," situated 

 soutliwest of, and over a mile from, the last, at an elevation of 

 nearly five thousand three hundred feet above sea level. It is 

 being actively and liberally developed, the vein being fourteen 

 feet wide and the ore showing considerable wire silver. Near 

 the surface it is very much altered and decomposed, but at 

 depth considerable galena is obtained. This ore is being packed 

 to the lake, and shipments of several carloads of selected ma- 

 terial have yielded three hundred ounces of silver. 



