On Metallic Minerals. 40 1 



obtained from the decomposition of water with carbon and 

 phosphorons, from animal and vegetable substances. The 

 presence of phosphoric acid, however, does not improve the 

 quality of the ore, as the bar iron made from it is said by 

 writers on the subject to be often, in consequence, what is 

 technically called " cold short," that is brittle when cold. 



Tliis ore is said to aftord good pig and bar iron, the 

 former at the rate of 45 per cent., it is probable, however, 

 that this is rather overrated, as bog ore seldom yields more 

 than 35 per cent. No plate iron, wire, nor steel, have been 

 manufactured ; for the two first, it may })robably be too 

 brittle owing to the presonse of phosj)horic acid, which is 

 always found in metal obtained from this ore. 



Tlie articles of cast iron furnished by this establishment 

 are stoves atul liollow ware of all descriptions. The former 

 are cast thick to resist the cold of the climate, and arc found 

 to be less liable to crack than those imported. 



During the late war the lake service was su])plicd with 

 trucks, shot and other castings by this establi>liment, and 

 in the event of u future war, not only the marine branch of 

 the service, but tliat of the ordnance also could be supplied 

 with many articles which the nature of the service might 

 require, such as gun carriages, shot, shells, &c. &c. the 

 the price would of course depend upon the state of 

 llie Hade. 



The (juantity of cast iron obtained averages about two 

 and a (piartcr tons per day — the result of two drawings in 

 twenty-four hours, or sixteen tons per week. I'rom f<jrty-tive 

 to fifty hundred weight of bur iron is manufactured eucli 

 week for the supply of axes, horse shoes, |)loughsharc.«, 

 &c. &c. 



The j^nnvth of timber is, in the swamps, spruce, hcnilock, 



