De Linea Helice ejusque Projectionibus Orthographicis Commentatio, quam ad Summos in Philosophia Honores Rite Capessendos Amplissimo Philosophorum Marburgensium Ordini.
Marburg: 1829. Folding diagram. 59 pages. Slim 8vo, older 1/2 rust cloth, marbled boards. Marburg, 1829. Pages toned, still a very good ex-library copy. More