A Line with the Dividing Point c
Pencil study of proportional division, gone over in pen
The transcription gives only the catalogue number 91 and the diagram's letters a, b and c, another of the notebook's studies in dividing a line into proportional parts. The figures are drawn in pencil and reinforced in pen. Additional mirror-script annotation on the sheet is not included in the transcription. The page sits within the Euclid-based geometry sequence of Manuscript K.
On this page
Line a-b with the point c
The transcription records the labels a and b together with a separate point c. Lettered segments of this kind underpin Leonardo's proportional-division exercises on the surrounding pages. No numerical values are attached to this figure.
Further untranscribed notes
Beyond the letter labels the leaf carries additional lines of mirror-script that the transcription does not record. Their content is not reproduced here.