154 BULLETIN 42, UNITED STATES NATIONAL MUSEUM. 



From the Catalan forge are shown : 



(1) Magnetileiiinl quartz, crushed, ready lor isejmiatiuij. Crown Point Mine. Essex 

 County, New York. (.^4436.) 



(•2) Separated ore, magnetite with a little quartz. Crown Point Mine, Essex 

 Conuty, New York. (5443.5.) 



(:>) Tailin<j.s, .separated from Crown Point ores. (54437.) 



(4) Wrought iron, sample billet. (54432.) 



(5) Cinder. (54434.) 



WARWICK FURNACE. 



This furnace is situated on the line of the Phila(leli)hia and Readinj"' 

 Kailroad, at Pottslown, Montgomery County, Pennsylvania. It is 55 

 feet by 15^ feet, and provided with iron ])ipe stoves for heating the 

 blast to about 8(10° F. The ores smelted consist of a mixture of a large 

 variety, and it is not uncommon to use six or seven different kinds at 

 once. The charge, when the samples of pig iron shown were taken, was: 



Per cent. 



Roasted Boyertown 30 



Elba 10 



Cooper Miuiug Company 10 



Staten Island "lied" 7^ 



Staten Island "Black"' 7^ 



Staten Island " Brown " 7i 



Hematite 71 



Scrap cinder « 10 



Mill cinder lU 



100 

 Limestone 35 



The fuel used is a mixture of three-quarters anthracite coal and one- 

 quarter coke, and 2,000 pounds will smelt 3,200 pounds of ore. The col- 

 lection shows : 



Ore. 



(1) Magnetite and calcite. Boyertuwn Mine, Berks County, Pennsylvania. (.54101.) 



(2) Roasted Boyertown. (54108.) 



(3) Liraonite, called "Red" ore. Staten Island, Richmond County, New York. 

 (.54103.) ■ 



(4) Limonite, called " Brown " ore. Staten Island, Richmond County, New York. 

 (.54104.) 



(5) Limonite, called " Black " ore. Staten Island, Richmond County, New York. 

 (54106.) 



(H) Limonite, called "Hematite." (541^2.) 



(7) Magnetite, pyrrhotite, and quartz. Cooper Mining Company Mine, Chester, 

 Morris County, New .Jersey. (54105.) 



(8) Hematite, from the Island of Elba. (54107.) 



Fluxes. 

 }1) Scrap cinder, (54125.) 



(2) Cinder, from nail mill, (54128.) 



(3) Limestone. Port Kennedy, Montgomery County, Pennsylvania, (.54109.) 



