Schmidt was the son of a poor weaver, and lost six precious years as a soldier in the artillery at Berlin. Owing to the smallness of his size he was at length dismissed, when he surrendered to a natural talent for engraving. Arriving at Strasburg, on his way to Paris, he fell in with Wille, who joined him in his journey, and eventually in his studies. The productions of Schmidt show ability, originality, and variety, rather than taste. His numerous portraits are excellent, being free and life-like, while the accessories of embroidery and drapery are rendered with effect. As an etcher he ranks next after Rembrandt. Of his portraits executed with the graver, that of the Empress Elizabeth of Russia is usually called the most important, perhaps on account of the imperial theme,--and next, those of Count Rasoumowsky, Count Esterhazy, and Mounsey, Court Physician, which he engraved while in St. Petersburg, whither he was called by the Empress, founding there the Academy of Engraving. But his real masterpieces are unquestionably Pierre Mignard and La Tour, French painters, the latter represented laughing. Wille lived to old age, not dying till 1808. During this long life he was active in the art to which he inclined naturally. His mastery of the graver was perfect, lending itself especially to the representation of satin and metal, although less happy with flesh. His _Satin Gown_, or _L’Instruction Paternelle_, after Terburg, and _Les Musiciens Ambulants_, after Dietrich, are always admired. Nothing of the kind in engraving is finer. His style was adapted to pictures of the Dutch school, and to portraits with rich surroundings. Of the latter the principal are Comte de Saint-Florentin, Marquis Poisson de Marigny, Jean de Boullongne, and Cardinal de Tencin. * * * * * Especially eminent was Wille as a teacher. Under his influence the art assumed new life, so that he became father of the modern school. His scholars spread everywhere, and among them are acknowledged masters. He was teacher of Bervic, whose portrait of Louis the Sixteenth in his coronation robes is of a high order, himself teacher of the Italian Toschi, who, after an eminent career, died as late as 1858; also teacher of P. A. Tardieu, himself teacher of the brilliant Desnoyers, whose portrait of the Emperor Napoleon in his coronation robes is the fit complement to that of Louis the Sixteenth; also teacher of the German, J. G. von Müller, himself father and teacher of J. F. W. von Müller, engraver of the Sistine Madonna, in a plate whose great fame is not above its merit; also teacher of the Italian Vangelisti, himself teacher of the unsurpassed Longhi, in whose school were Anderloni and Jesi. Thus not only by his works, but by his famous scholars, did the humble gunsmith gain sway in Art.