Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 685
FiG. 1627. Fig. 1628. plied at the angles only, so that it might be supported by four flying buttresses,placed in the direction of the resultants, and strong enough to resist thepressure. Fig. 1629 represents a compartment of the simplest Gothic vaulting—a, «,groin ribs; Z*, J, ^, side ribs. The…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from M. Vitrvvii viri svae professionis pertissimi De architectvra libri decem, ad Avgvstum Cæsarem accuratiss. conscripsit & nvnc primvm in Germania qva potuit diligentia excusi, atq[ue] hinc inde schematibus non iniucundis exornati (1543)](https://img.insideoutlibrary.com/img/200/ia-mvitrvviivirisva00vitr-75-12.webp)
