Bragdon, Claude Fayette, 1866-1946 · New York, A. A. Knopf · leaf 128
Architecture and Democracy — away from it altogether, either up or down. This is not possible, of course, but the third direc- tion can be represented on the plane of the paper. TWO PROJECTIONS Of THE HYPER CU5E OR THRACE AND THEIR, TRANSLATION INTO ORNAMENT. … C D Figure 14 Let us represent it as diagonally downward toward the right, namely, y. In the y direction, then, and at a distance equal to the length of one of the sides of the square, another square is drawn, a'b'c'd', [108]
Sullivan, Louis H., 1856-1924 · Architecture · Decoration and ornament
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Dess Circkelss vnd Richtscheyts, auch der Perspectiua, vnd Proportion der Menschen vnd Rosse, kurtze, doch gründtliche Vnderweisung, dess rechten gebrauchs : mit viel schönen Figuren, aller anfahenden Jugendt, vnnd andern liebhabern dieser Kunst, als Goldschmiden, Malern, Bildhauwern, Steinmetzen, Schreinern, [et]c. eigentlich fürgebildet, vormals im Truck nie gesehen, sonder jetzunder erstmals von neuwem an Tag gegeben (1618)](https://img.insideoutlibrary.com/img/200/ia-gri_33125010031561-57-0.webp)
![An illustration from [D[as] puechle[n] d[er] fiale[n] gerechtikait] (1486)](https://img.insideoutlibrary.com/img/200/heidelberg-roritzer1486-9-1.webp)
