The formality of a preface may seem scarcely necessary forthe supplementing of a system as simple and comprehensible asthe one herewith presented.

We have but to divide any surface we may wish to letterinto squares (or parallelograms as the case may be), in pencillines; form the required letters, in ink or paint, and accordingto the style chosen; erase the pencil lines, and the letteringis complete.

J. H. C.