Treatise page with the Institut de France stamp
Mirror-script prose page, foliated 25, from the leaves cut from Notebook A; not transcribed here
The leaf carries two paragraphs of Leonardo's mirror-writing, each introduced by a short heading, with a red folio number at the upper right and the oval library stamp of the Institut de France at the middle of the page. A few lines of offset script show through along the lower margin from the facing leaf. The page has no diagrams, and its text is not transcribed in this edition. It is one of the discursive leaves cut from Notebook A and later restored to the Paris manuscripts.
On this page
Two headed paragraphs of untranscribed prose
Two blocks of continuous mirror-script fill the column, each opened by a short heading set off from the body text. The wording is not transcribed in this edition and is left unread from the image. The layout follows the precept-by-precept form of the treatise material on these leaves.