Samuel Heinicke, a German educator, born at Nautsehutz, near Weissenfels, April 10, 1729, died in Leipsic, April 30, 1790. At 21 years of age he joined the life guards of the elector of Saxony, in which he served four years, and taught himself Latin and French, He afterward engaged in teaching, studied for a time at Jena, became a private tutor in Hamburg, and in 1768 chorister in Eppendorf. He had several years previously been successful in teaching deaf mutes, and now taught a deaf and dumb boy to speak. Large numbers of deaf mutes were consequently put under his care, and his reputation became so great that the elector of Saxony solicited him to return to his native country. He went to Leipsic, and on April 14, 1778, opened the first institution for the instruction of the deaf and dumb in Germany, He also took great interest in public education, and vigorously attacked the old system of learning by rote. After his death his wife continued to direct the institution. His principal writings are: Beobachtungen uber Stumme und die menschliche Sprache (Hamburg, 1778); Ueber die Denkart der Taub-stummen (Leipsic, 1780); Ueber alte und neue Lehrarten (1783); and Wichtige Entdeckungen und Beitrage zur Seelenlehre und zur mensch lichen Sprache (1784).