258 
Lead. 
to me a business of much importance, I shall only refer 
to the method of making these boxes, in No. 2, of vol. 1. 
p. 133, for July, 1802, of the New Series of the Repertory 
of Arts. 
Shot. Is made by melting lead with arsenic, and 
pouring it out of Troughs from a great height into a large 
vessel of water. The height is intended to give rotundity 
to the shot : the arsenic to make it more fusible, so that 
it shall preserve its rotundity arising from its liquid state 
until the moment when it is required to be condensed. 
Mr. Paul Beck’s shot manufactory at Philadelphia, is, 
I believe, 175 or 180 feet high. The first fall for small 
shot is about 130 feet, the second fall or melting place, is 
about 170 feet high. 
I give below the common English processes : but in 
my opinion the practice is, to melt the whole quantity of 
arsenic, with a small portion of the lead first : and then to 
add this strongly arseniated lead to the unalloyed lead, 
when the latter is melted. The arsenic, should not be 
orpiment . It should be white arsenic. It should be mix- 
ed with three or four times its bulk of charcoal, lamp- 
black, rosin, or some carbonaceous or inflammable sub- 
stance, and being tightly inclosed in several folds of paper, 
should be thrust down with a stick to the bottom of the 
lead. The pan of melted lead, should be then covered, 
in order to aid the impregnation of the lead with the arse- 
nic. The pan should be of thin cast or thick sheet iron ; 
for the heat must not be too great. It is right, when the 
surface of the lead is irridescent 
As the general method of making shot is kept a secret, 
I give fill the processes I have. 
Patent Milled Shot , is thus made ; sheets of lead, 
whose thickness corresponds with the size of the shot re- 
