222, Lead. 
sets of cast-iron rollers, one fluted lengthway, and Another 
crossway. 
It is true, a manufactory may be carried on with fewer 
apartments, but very few of those I have mentioned can 
be dispensed with, in a manufactory on a tolerable scale. 
It should not be commenced under ten or twelve thou- 
sand dollars. Although white lead is a cash article, yet 
it must be remembered that blue lead is a cash article 
also, and the stock on hand will be of considerable value 
‘in a small compass. 
Such an establishment ought to have a red lead manu- 
factory connected with it : and by and by, the manufac- 
turers here will find their interest in connecting with it, a 
manufactory of sugar of lead, and of pyroligneous acid. 
The buildings will require at least 12,000 square feet 
on the ground plan. The power may be water power, 
horse power, or a steam engine. 
Of Casting the Lead . — A man stands with a barrow, 
at the left hand of the smelter who also casts the lead into 
plates. He has two long ladles, one to lade out the melt- 
ed lead, the other with a flat bottom, thirty inches long 
and six inches broad. Holding in his left hand the flat 
ladle, he pours on it from the other ladle in his right hand, 
(resting it at first on the edge of the pot that holds the 
lead) a quantity of melted lead, moving the right hand 
ladle down to the point of the left hand ladle, and gradu- 
ally discharging its contents. Great part of the lead, runs 
off and falls on a table ready to receive it, but a part re- 
mains in the left hand ladle, covering the bottom thereof 
with a sheet of the above dimensions and about the eighth 
of an inch thick. The .smelter, turns this off into the 
barrow, which when full, is wheeled away to the rolling 
room, and discharged upon the roller’s bench, who turns 
it into a spiral of about three and a half inches diameter* 
