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

XL.—Forty.

XC.—Ninety.

X. or Xt.—Christ.

Xmas or Xm.—Christmas.

Xn. or Xtian.—Christian.

Xnty. or Xty.—Christianity.

Xper. or Xr.—Christopher.

Yd.—Yard.

y. or yᵉ.—The.

yᵐ.—Them.