The solid ball being gathered as
A, expanded by blowing, and marvered, as B,
&c., the interstices of the interior of the mould of brass, agreeably
to the section annexed, C, are filled with small white
enamel canes; and the ball of Flint Glass is then blown fully up to the
canes, to which it firmly welds, as D. As soon as it
has been re-warmed, a workman holds with the pucellas the bottom of the
ball, D, while another workman twists the blowing-iron,
giving the conical form,
|