Langhansen, Christoph, theologian and mathematician (1691-1770). Autograph quotation signed.

Königsberg, 10 Dec. 1736.

Oblong 8vo. 1 p.

 800.00

"Panta dokimazete, to kalon katechete" ("Test everything. Hold on to the good", Thessalonians 5:21).

Christoph Langhansen was professor of mathematics and theology in Königsberg, several times president of the university and author of numerous mathematical and astronomical writings.

With small ms. numbering.