MOULDS of founders of large works, as statues, bells, guns, and other brazen works, are of wax, supported within-side by what we call a core, and covered without-side with a cape or case. It is in the space occupied by the wax, which is afterwards melted away to leave it free, that the liquid metal runs, and the work is formed, being carried thither through a great number of little canals, which cover the whole mould.