Bücher der Reihe Jacob Steiner's Gesammelte Werke 2 Volume Set

Considered by many to be the greatest geometer since Apollonius of Perga, the Swiss mathematician Jakob Steiner (1796-1863) did important work on systemising geometry. This two-volume edition of his collected works in German was edited by Karl Weierstrass (1815-97) and published between 1881 and 1882.