208 Geology, Mineralogy, Scenery, e- 
was informed that they sometimes melt this dross over again 
to get more iron from it, but that in general it is neglected. 
In the course of some hours, the melted ore, in a good de- 
gree freed from its oxigen, collects into a cisvereak; but soft 
mass on the hearth of the forge ; it is removed from the 
fire by very massy tongs, connected by an iron chain with a 
huge crane of wood by means of which it is sw ung off to_ 
the anvil, where it is subjected to the strokes of a hammer 
moved by water and weighing 600 pounds. ‘The loup, as 
itis called is thus completed—the dross is pressed out of its 
_cavities,—it is shaped into the form of a rude. paralielopi- 
ped and indeed xy ee even by this first operation, in a 
good degree malleable 
It is now called a ares 3 itis returned to the fire and 
heated intensely again, and again it is hammered ; the dross 
may be seen exuding from its pores and dropping i in a mel- 
ted state—the iron becoming more and more compact and 
tough till it fnsbly acquires all the proparies of that most 
useful metal. 
The iron made from the Salisbury ore is considered as re~ 
markably, tough and strong, and it is obvious that such is 
the belief of our government and ee men or it would not 
be employed for anchors for ships of w 
i blooms after they are Se aaaic are moire from. 
whl Nave me: 
four our pou eh oe was. forged from malleable i iron, eds shewn to 
the Connecticut legislature at New-Haven. There was 00 
anchor in this shop at present over 1000 pounds weight.— 
The price at the forge, is about eight dollars per hundred, oF 
nine dollars delivered (at water carriage I premneia) 
: Manufactory, of Screws. 
The Moen: Mopis hice also at thes same suaeows 
tablishment for 1 manufacturing screws of the largest sande: 
for powerful machinery ; such screws as are sometimes ma-_ 
ny feet in length and several inches in diameter. The pro 
eess by which, they are manufactured is sufficiently simple, ‘ 
considering the importance of the result.. The piece of 
iron being duly prepared ca signee as near as. uakie 
) to 300 pounds. weight, and from them the anchors» 
wt 
Beer Se San ee Te 
