PLANT OF SMELTEES M, N, O, AND P. 691 



Smelter M had but one square furuace, of the Easchette pattern, entirely sheathed 

 in an iron jacket. The water-jacket system was formed of four wroughtiron riveted- 

 plate jackets, provided with seven tuyere-holes. The lining of the crucible was made 

 of steep. The dimensions at the tuyere were 5 by 2 feet. lu Fig. 2, Plate XXXIII, 

 is seen the peculiar dust-chamber which was used at this smelter. The stack E of the 

 furnace was connected by means of the sheet-iron tlue F with the cylindrical sheet- 

 iron chamber D', placed high above the feeding-floor and outside of the main build- 

 ing. This chamber was provided with a stack F, and the fumes were compelled to cir- 

 culate by means of the two sheet-iron cones m y z, suspended to the stack F by means 

 of a chain a y. The chamber was provided with a sliding valve 8, for the extraction 

 of the dust, which fell through the pipe s into a wooden box, placed on a level with the 

 feeding-floor. 



The smelting capacity of the works was 30 tons of ore per twenty-four hours. 



Smelter N, situated iu Malta, at the end of California gulch, was the first smelter 

 erected in Lake County, and was built iu 1875. This smelter, which was not running 

 at the time this report was made, has been started anew. The works are divided 

 into several levels. The well from which the water was pumped into the water-jackets 

 of the furnace stands in the furnace-room. The furnace, the only one used at these 

 works, has the same shape and capacity as the furnace described at smelter M, and 

 is also entirely sheathed iu an iron jacket. 



The engine is of 30 horse-power, driving one No. 4 Baker blower, one Blake 

 crusher (10 by 7 feet), and the pumps. 



Eighteen men and four officers are in charge of the works. 



Smelter N is placed a few yards from the Denver and Eio Grande Eailroad track, 

 and is connected with it by a siding. 



Smelter O. 



This smelter is also situated in Malta, at the end of California gulch, and a short 

 distance south of smelter N. 



Smelter O has two furnaces of the Piltz pattern, oval in shape and similar to 

 the oval furnace used at smelter E. These works have long since ceased running. 



Smelter P. 



Smelter P is the Adelaide smelter, which was situated near the mine in Stray 

 Horse gulch, at the north end of Iron Hill. It also ceased running long ago for want 

 of ore. Its furnace has since been purchased and removed, and is now running at one 

 of the smelters in Big Evans gulch. 



