The printer's grammar [electronic resource] : containing a concise history of the origin of printing; also, an examination of the Superficies, Gradation, and Properties of the different sizes of types cast by Letter Founders; Various Tables of Calculation; Models of Letter Cases; Schemes for casting off Copy, and Imposing; and Many Other Requisites for attaining a perfect Knowledge both in the Theory and Practice of the Art of Printing. With directions to authors, compilers, &c. How to prepare copy, and to correct their own proofs. Chiefly collected from Smith's edition. To which are added directions for pressmen, &c. The whole calculated for the Service of All who have any Concern in the Letter Press.