The many _Punches_ to be _Sunk_ into _Matrices_ for the same _Body_, are difficult to be _Sunk_ of an equal depth. Therefore I always make a _Beard-Gage_, as is described in _Plate_ 19 at F, where _a b_ is a _Sholder_ that rests upon the _Face_ of the _Matrice_, _c_ is the _Point_ or _Gage_ that measures the depth of the _Sunken Punch_. So that when the _Point_ _c_ just touches the _Bottom_, and both the _Sholders_ _a b_ the _Face_ of the _Matrice_, the _Punch_ may be accounted well Sunk as to depth. But though it be accounted well _Sunk_ for a first Essay, yet can it not be reasonably imagined it is well _Sunk_ for good and all; as well because in _Sinking_ the _Punches_ it has carryed some part of the _Surface_ of the _Matrice_ down below the _Face_ of the _Matrice_ into the _Body_ of the _Copper_, as because both the _Sides_ are doubtless extorted, and one Side or Part of the _Punch Sunk_ more or less deeper than the other. Wherefore I now come to ¶. 2. _Justifying the_ Matrices. _Justifying_ of _Matrices_ is, 1. to make the _Face_ of the _Sunken_ Letter, lie an exact designed depth below the _Face_ of the _Matrice_, and on all its sides equally deep from the _Face_ of the _Matrice_. 2. It is to set or _Justifie_ the _Foot-line_ of the Letter exactly in _Line_. 3. It is to _Justifie_ both the sides, _viz._ the Right and left-sides of a _Matrice_ to an exact thickness. Therefore to proceed Methodically, he first slightly Files down the _Bunchings_ out that the _Punch_ made in the Sides of the _Matrice_; And then slightly Files down all the _Copper_, on the _Face_ of the _Matrice_, till the Hollow the _Punch_ made becomes even with the whole _Face_ of the _Matrice_. Then he _Casts_ a _Proof-Letter_ or two, and _Rubs_ them: And with the Edge of a Knife cuts out what may remain in the bottom of the _Shanck_ by reason of the un-even breaking, off of the _Break_ that the square bottom of the _Shanck_ may not be born off the _Bottom-Ledge_ of the _Lining-Stick_. But having till now said nothing of the _Lining-Stick_, it is proper before I proceed, to give a Description of it: It is delineated in _Plate_ 19 at G. Where G is the _Plain_, _a_ the _Side-Ledge_, _b_ the _Bottom-Ledge_, _c_ the _Stilt_, all made of _Brass_. The _Plain_ is exactly flat, Straight, and Smooth, that the _Shancks_ of the _Letter_ being likewise so, may lie flat and solidly on it. Its depth between the _Bottom-Ledge_, and the fore edge is about the length of the _Shanck_ of the Letter: But the whole _Plain_ of _Brass_ is yet deeper; Because the _Bottom-Ledge_ is fastned on it. The _Lining-Stick_ is about two _Inches_ long for small Letters; but longer for Big-_Bodyed_ _Letters_.