About 1551 he conceived the idea of making his native land better known by translating into Latin parts of the great Chronik of Johann Stumpf. With this view he collected materials, and in 1574 published a specimen of his intended work in the shape of a monograph on the Canton of the Valais. He published in the same volume a general description of the Alps, as the Introduction to his projected work on the several Swiss Cantons. In this treatise, entitled De Alpibus commentarius, he collected all that the classical authors had written on the Alps, adding a good deal of material collected from his friends and correspondents. This Commentarius is the first work exclusively devoted to the Alps, and sums up the knowledge of that region possessed in the 16th century.