LITHOGRAPHY n.
of putting designs or writing, with a greasy material, on stone, and of producing printed impressions therefrom. The process depends, in the main, upon the antipathy between grease and water, which prevents a printing ink containing oil from adhering to wetted parts of the stone not covered by the design. See Lithograp…
MARK n. 3 definitions
A visible sign or impression made or left upon anything; esp., a line, point, stamp, figure, or the like, drawn or impressed, so as to attract the attention and convey some information or intimation; a token; a trace. The Lord set a mark upon Cain, lest any finding him should kill him. Gen. iv. 15.
MORSE ALPHABET n.
.Morse, the inventor of Morse's telegraph. The letters are represented by dots and dashes impressed or printed on paper, as, .- (A), -... (B), -.. (D), . (E), .. (O), ... (R), -- (T), etc., or by sounds, flashes of light, etc., with greater or less intervals between them.