{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/0767.htm","path":"aor/dv/0767.htm","source_url":"https://sacred-texts.com/aor/dv/0767.htm","text":"The Da Vinci Notebooks\nThe cylinder of a body columnar in shape and its two opposite ends are two circles enclosed between parallel lines, and through the centre of the cylinder is a straight line, ending at the centre of these circles, and called by the ancients the axis.\n73:396 : Leonardo wrote these lines on the margin of a page of the Trattato di Francesco di Giorgio, where there are several drawings of columns, as well as a head drawn in profile inside an outline sketch of a capital.","title":"Vol. II: XII. Architectural Designs: 767.","type":"page"}