February 12, 1850 - February 5, 1934,Davis, who was born in Philadelphia, Pennsylvania, was educated at Harvard. He returned to teach there in 1877 after a period as a meteorologist in Argentina and as an assistant with the North Pacific Survey. He became professor of physical geography in 1890 and of geology in 1898. Davis is acknowledged as the founder of geomorphology, the study of landforms. In his The Rivers and Valleys of Pennsylvania (1889) he first introduced what later became known as the Davisian systems of landscape analysis. His aim was to provide an explanatory description of how landforms change in an ideal situation and his most important contribution to this was his introduction of the cycle of erosion into geographical thought. He proposed a complete cycle of youth, maturity, and old age to describe the evolution of a landscape. In youth rivers occupy steep V-shaped valleys while in old age the valleys are broad. The end product would be a flat featureless plain he called a epeneplaine. This was an ideal cycle but in practice the cycle would invariably be interrupted by Earth movements. It was, nevertheless, strongly attacked by German geographers who objected to it on the grounds that it neglected such vital factors as weathering and climate in transforming the landscape. They also believed him to be undermining their argument that landforms could only be discovered by local fieldwork and the production of regional monographs. Davis also produced an influential work,  Related Paintings of William Morris Davis :. | Getreidefelder auf den Hugeln von Argenteuil | Jakobs Traum | Chateau de Comblat | The Fiance at the Villa Borghese | Seascape with Sailing Boats |
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Martin Johann Schmidt
Austrian Painter, 1718-1801,was one of the most outstanding Austrian painters of the late Baroque/Rococo along with Franz Anton Maulbertsch. A son of the sculptor Johannes Schmidt and a pupil of Gottlieb Starmayr, he spent most of his life at Stein, where he mostly worked in the numerous churches and monasteries of his Lower Austrian homeland. While the evolution of his style after 1750 shows that he had either spent a formative period in northern Italy or had at least had extensive contact with northern Italian works of art prior to that date, his works are also clearly influenced by Rembrandt (visible above all in his etchings) and the great fresco-painters of the Austrian Baroque, Paul Troger and Daniel Gran. Despite not having received formal academic training, in 1768 he was made a member of the imperial academy at Vienna due to his artistic merits, which by that time had already been recognized by a wider public inside and outside of Austria. Primarily he painted devotional images for private devotion and churches, including a considerable number of large altar paintings. His lively and colourful style made him extremely popular with people from all levels of society already during his lifetime. From 1780 mythological and low-life themes became increasingly frequent, only to be replaced by a renewed concentration on religious topics during the very last years of Schmidt's life. He was at that an important draughtsman and has left numerous etchings which clearly show Rembrandt's influence. While his earlier works typically show a warm chiaroscuro, from about 1770 he used increasingly stronger and more lively colours. Simultanueously, both his style and his brush technique became much more free, making him, like Franz Anton Maulbertsch, an important predecessor of impressionism. In this aspect, his mature style is completely contrary to neoclassicism, the style which increasingly dominated European art after about 1780.