Athanasii Kircheri ... Mvsvrgia Vniversalis Sive Ars Magna Consoni Et Dissoni: in X libros digesta, Qua Vniversa Sonorum doctrina, & Philosophia, Musicaeque tam Theoricae, quam practicae scientia, summa varietate traditur ...: Qui continet. In Lib. VIII. Musicam Mirificam. In Lib. IX. Magiam Consoni & Dissoni. In Lib. X. Harmoniam Mundi
Athanasius Kircher's 1650 Latin treatise Musurgia Universalis, a encyclopedic work on music, sound and acoustics written for scholars and natural philosophers. The pictures are plain line diagrams in black ink: ruled grids with lettered points, converging string lines, and geometric figures with dashed construction lines. A designer might take from them the precise, schematic look of early scientific diagrams, with clean letter labels and fine radiating rules.
