Swiss, 1758-1844,He began his career as a portrait painter in Basle and Pruntrut but in 1775 moved to Berne, where he took up landscape painting. From 1777 to 1781 he worked with Johann Ludwig Aberli and was also a colour-printer with the publisher Abraham Wagner (1734-82). In 1781 he went to Rome, where he remained for ten years working for Louis Ducros and for Giovanni Volpato. While in Rome he painted landscapes in watercolour and drew in bistre, using a soft brush and making little use of the pen. He also sketched in the Alban Hills, being particularly attracted to the waterfalls at Tivoli and Terni. He became a member of Goethe's circle in Rome, and, under the influence of its members, he adopted Claude as his model. His watercolours and bistre drawings, enlivened by Greco-Roman or contemporary staffage, became more tranquil, more classical in style and increasingly strengthened with pen outlines. In 1792 he returned to Basle to teach. He soon became an art dealer, opened his own shop and set up his own publishing house, and in 1802 he printed his best-known work, a series of aquatints of Voyage pittoresque de Basle ? Bienne par les vallons de Mottiers-Grandval. From 1802 to 1804 he showed at the annual exhibitions of the K?nstlergesellschaft in Zurich, and in 1804 and 1810 in Berne he exhibited work in oils, a medium that was becoming increasingly important for him. In 1805 he was commissioned by the publishing house of Artaria & Co. in Vienna to sketch the scenery in the region of the north Italian lakes. For the next 30 years he continued to paint and draw, but after 1834 he tended to repeat the locales and compositions of his earlier landscapes.