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.

by Thomas MacKellar

Lon.—Longitude.

L. S.—Locus sigilli, place of the seal.

Lt.—Lieutenant.

LX.—Sixty or sixtieth.

LXX.—Seventy or seventieth.

LXX.—The Septuagint (Version of the Old Testament.)

LXXX.—Eighty or eightieth.

m.—Meter, (metric system.)

M.—Mille, a thousand; Meridies, noon.

M. or Mons.—Monsieur.