St. Mark's rest : the history of Venice written for the help of the few travellers who still care for her monuments (1885)
Ruskin, John, 1819-1900 · New York : Lovell · leaf 384
from any point c on the measuring-line to f, will markthe distance a b on the inclined line, a b being the portion ofthe given inclined line which forms the diagonal of the verticalrectangle of which a c is the base. aiGllT-LlNE OF INCLINED PLANKS. 55 PROBLEM XVin. TO FIND THE SIGHT-LEME OF AN… … Fig. 48. Let the two lines be a b and c d, Figf. 48. * Read the Article on this problem in the Appendix, p.87-88,beforeinvestigating the problem itself. 5n 777^ ELEMENTS OF PERSPECTIVE. As they are given iu position, the relative horizontals a eand c F must be given. Then by Problem XVL the…
Art
Internet Archive · Public Domain Mark 1.0. Free to use for anything.