{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/0129.htm","path":"aor/dv/0129.htm","source_url":"https://sacred-texts.com/aor/dv/0129.htm","text":"MEMORANDUM OF THINGS I REQUIRE TO HAVE GRANTED [AS AXIOMS] IN MY EXPLANATION OF PERSPECTIVE.\nI ask to have this much granted me--to assert that every ray\npassing through air of equal density throughout, travels in a\nstraight line from its cause to the object or place it falls upon.","title":"Vol. I: III. Six Books on Light and Shade: 129.","type":"page"}