I. Johann Konrad, a Swiss physician, born at Schaffhausen in 1669, died at War-mund, near Leyden, about 1725. He studied at Basel, but established himself in Holland. In 1692 he published an essay entitled Surdus Loqvens ("The Deaf Speaking "), in which he gave an account of the results of his successful efforts in teaching a girl deaf and dumb from birth to articulate. In 1700 he published another essay entitled Dissertatio de Loquela. These two works were of great value to Hei-nicke, Braid wood, and De l'Epee, who at a later period organized schools for the instruction of deaf mutes. He was also noted as an editor and translator of the classics.

II. Jost, or Jodocus, a Swiss painter and engraver, born in Zurich in 1589, died in 1591. In 1560 he established himself at Nuremberg, where he acquired fame, especially by his woodcut illustrations of Reineke Fuchs, Luther's Bible, Schop-pen's Panoplia, and many other works, being the best and most prolific illustrator of his time. His paintings are rare and much sought for.