Cram, Ralph Adams, 1863-1942, Hastings, Thomas, 1860-1929, Bragdon, Claude Fayette, 1866-1946 · Chicago, Ill., Pub. for the Art Institute of Chicago by the University of Chicago Press · leaf 251
GROUP:TETRAHEDRONS ANDDERIVED ORNAMENT Fig. 17 LECTURES ON ARCHITECTURE … Fig. i 8 KNOTS HOM MA31C ljNES it has occult associations. I refer to magic linesin magic squares. You all know what a magicsquare is: it is a sort of numerical acrostic, anarrangement in square form of numbers whichyield the same magic sum when added in verticaland horizontal columns and along the…
Architecture
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![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-108-274.webp)
