TO CUT GLASS WITH A PIECE OF IRON. - Draw with a
pencil on paper, any pattern to which you would have the
glass conform; place the pattern under the glass, holding
both together in the left hand, (for the glass must not rest
on any plane surface;) then take a common spike or some
similar piece of iron,-beat the point of it to redness, and
applyy it to the edge of the glass draw the iron slowly
forward, and the edge of the glass will immediately crack;
continue moving the iron slowly over the glass, tracing the
pattern, and the chink in the glass will follow at the
distance of about half an inch, in every direction according
to the motion of the iron. It may sometimes be found
requisite, however, especially in forming corners, to apply
a wet finger to the opposite side of the glass. Tumblers
and other glasses may be cut or divided very fancifully by
similar means. The iron must be reheated as often as the
crevice in the glass ceases to follow.