Cin.—Cincinnati.
C. J.—Chief-Justice.
cl.—centiliter, (metric system.)
Clk.—Clerk.
cm.—centimeter, (metric system.)
C. M.—Common Metre.
C. M. G.—Companion of the Order of St. Michael and St. George.
Co.—Company; County.
C. O. D.—Cash (or collect) on delivery.
Col.—Colorado; Colonel; Colossians.