Aloys Senefelder, the inventor of lithography, born in Prague, Nov. 0, 1771, died in Munich, Feb. 26, 1834. He was sent to In-golstadt to study few, and while there occasionally performed in private theatricals, and in 1789 wrote a comedy, Die Mädchenkenner. On the death of his father, an actor, he tried unsuccessfully to be an actor and dramatist. Having learned something of printing, he experimented to invent a process of his own, and finally made by accident his great discovery. (See Lithography.) His first prints were some pieces of music. Subsequently he made important improvements, contrived a press, obtained a patent, and set up an establishment, which he carried on for some time successfully. In 1809 he was appointed inspector of the royal lithographing establishment at Munich. He published Lehrbuch der Lithographie (Munich, 1819; English translation, "Complete Course of Lithography," 4to, London, 1819). - See Aloys Senefelder und der geistliche Rath Simon Schmidt, by Nagler (Munich, 1862).