Keywords: public domain collage fodder elusive muse blackandwhite monochrome triangle black and white Public Domain Book: A course of pure geometry; containing a complete geometrical treatment of the properties of the conic sections by Askwith, E. H. (Edward Harrison), 1864- archive.org/details/c00ourseofpuregeomaskwrich Public Domain Book: A course of pure geometry; containing a complete geometrical treatment of the properties of the conic sections by Askwith, E. H. (Edward Harrison), 1864- archive.org/details/c00ourseofpuregeomaskwrich |