Having _Justified_ the _Mold_ and _Matrice_, we come now to _Casting_ of _Letters_: But yet we have neither _Furnance_, _Mettal_, or _Ladle_. Wherefore it is the _Founders_ care, first to provide these. The _Furnance_ I have described in Plate 20. It is built of Brick upright, with four square sides and a Stone on the top, in which Stone is a wide round hole for the _Pan_ to stand in. _a b c d_ The square Stone at the top, covering the whole _Furnance_. This is indeed the _Furnance_. _a d_, _b c_ The breadth two Foot and one Inch. _a b_, _c d_ The Length two Foot three Inches. Into the Breadth and Length about the whole Stone, is let in even with the top of the Stone a square _Iron Band_ two Inches deep, and a quarter and half quarter of an Inch thick to preserve the Edges of the Stone from battering. _e_ The round hole the Pan stands in, which hath an _Iron Plate_ let into it eight Inches diameter, an Inch and half broad and one quarter of an Inch thick. This _Iron_-Plate fits the _inside_ of the _Hole_ so far as it is Circular, and consequently is a _Segment_ of a _Circle_. But where the _Smoak-vent_ breaks off the Circularity of the Stone, there ends this Plate of _Iron_, that the Smoak may have the freer vent. Its Office also is to preserve the Edge of the _Hole_ from battering, with the oft taking out and putting in the _Iron Pan_. _f_ The _Funnel_ seven Inches high, and five Inches wide. _g_ The _Stoke-Hole_ four Inches wide, and six Inches long. _h h_ The height of the _Furnance_ two Foot ten Inches. _i_ The _Air-Hole_ just underneath the Hearth to let in Air that the Fire may burn the freer. _k_ The _Ash-Hole_ where the Ashes that fall from the Hearth are taken away. _l m n o_ The _Bench_ two Foot broad, three Foot long, and two Foot eight Inches high. The _Bench_ is to empty the Letters out of the _Mold_ upon, as the _Founder Casts_ them. The _Hearth_ lies seven Inches below the top of the round _Hole_, and hath under it another round _Iron-Ring_ of the same demensions with the first, on which straight _Iron-Bars_ are fastened that the _Fire_ is laid on. In the round _Iron-Ring_ (or rather Segment) on the top of the _Furnance_ is set the _Pan_, which is either a _Plate Ladle_, or a small _Cast-Iron Kettle_ that sinks into it within two Inches of the _Brims_ of the _Pan_. ¶. 2. _Of making_ Mettal. The Mettal _Founders_ make _Printing-Letters_ of, is _Lead_ hardned with _Iron_: Thus they chuse _stub-Nails_ for the best _Iron_ to Melt, as well because they are asured _stub-Nails_ are made of good soft and tough _Iron_, as because (they being in small pieces of _Iron_) will Melt the sooner.