Eye, visual rays and a two-lamp shadow study
Vision and cast-shadow sketches among untranscribed mirror-script notes
Between blocks of mirror-script this leaf carries three small drawings: a dark lozenge-shaped body flanked by two flaming lamps on stands, a circle drawn as an eye at the right with straight rays converging on it from a small object at the left, and a faint branching line-sketch in the upper corner. Together the lamp-and-body and eye-with-rays figures place the page among Leonardo's studies of light, cast shadow and vision. No transcription of the accompanying text was supplied, so its wording is left untranscribed here rather than read from the image. The main script is legible, though some marginal notes are faint.
On this page
Two-lamp shadow experiment with a central body
Mid-page, a dark lozenge-shaped body is set between two small lamps on stands, each crowned by a scribbled flame. Placing one opaque object between two light sources is Leonardo's standard arrangement for studying how twin lights combine and where each throws the body's shadow.
Visual rays converging on the eye
Toward the right, a circle drawn as an eye, lettered d, receives a fan of straight lines that spring from a small upright object at the left. The figure traces the pyramid of visual rays running from the object to the eye. It sits directly among the page's mirror-script, which is not transcribed here.