De dimensione terræ et geometrice numerandis locorum particularium interuallis ex doctrina triangulorum sphæricorum & canone subtensarum liber, : denuo editus, sed auctius multo & correctius, quam antea.
A 1554 Latin treatise printed at Wittenberg by Johannes Crato, written by Kaspar Peucer with Melanchthon's involvement, on measuring the earth and locating places through spherical trigonometry and tables of chords, meant for students of astronomy and geometry. Its pictures are plain line diagrams of spherical triangles, arcs, and circles with lettered vertices, set in dense Latin type; a designer might take their clean geometric linework and rhythmic arrangement of arcs and radii as a model for technical diagrams.
