Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 714
V … Fig. 1771. Fig.1772. 698 ISOMETRICAL DRAWING. In the application of this species of projection to curved lines, let A B(Fig. 1773) be the side of a cube with a circle inscribed; and all the faces of acube are to have similarly inscribed circles. Draw the diagonals A B, C D, andat their intersection…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![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-296-461.webp)
