208 Geology, Mineralogy, Scenery, Se. 
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- 
eree freed from its oxigen, collects into a coherent, 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 swung 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 parallelopi- 
ped and indeed becomes, even by this first operation,-in a 
good degree malleable iron. 
It is now called a bloom ; it is returned to the fire and 
heated intensely again, and again it is hammered ; the dross 
may be seen exuding from its pores and dropping in a mel- 
ted state—the iron becoming more and more compact and 
_tough till it finally acquires all the properties 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 naval men or it would not 
be employed for anchors for ships of war. 
The blooms after: they are finished, are commonly from 
150 to 300 pounds weight, and from them the anchors 
are forged, altogether by the use of the ponderous hammers 
which I have mentioned. In this shop, a few years since, a 
four pounder was forged from malleable iron, and shewn to 
the Connecticut legislature at New-Haven. There was no 
anchor in this shop at present over 1000 pounds weight.— — 
The price at the forge, is about eight dollars per hundred, or 
nine dollars delivered (at water carriage I presume.) 
Manufactory of Screws. 
The Messrs. Hunts have also at the same place, an es- 
tablishment for manufacturing screws of the largest kinds 
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 and brought as near as may be 
