M. R. S. L.—Member of the Royal Society of Literature.

M. S.—_Memoriæ sacrum_, Sacred to the memory; Master of the

Sciences.

MS.—_Manuscriptum_, manuscript.

MSS.—_Manuscripta_, manuscripts.

Mt.—Mount or mountain.

Mus. B.—Bachelor of Music.

Mus. D.—Doctor of Music.

The American Printer: A Manual of Typography Containing practical directions for managing all departments of a printing office, as well as complete instructions for apprentices; with several useful tables, numerous schemes for imposing forms in every variety, hints to authors, etc. · 第 392 / 417 题