Elemente der Absoluten Geometrie, by Johannes Frischauf 29806 [Language: German] [Link: http://www.gutenberg.org/2/9/8/0/29806 ] [Files: 29806-8.txt] Thanks to Ralf Stephan, Joshua Hutchinson and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images from the Cornell University Library: Historical Mathematics Monographs collection.) David