Blank page (folio 13r)
The e-Leo catalogue records this folio as blank ("Bianco"); the page carries only the ink folio number "13" at the upper corner and the Institut de France library stamp, with no notes or drawings of its own.
Bianco.
This page carries no transcription to translate. See the Overview for a description of what Leonardo drew here.
Reader's Edition — described with AI from the e-Leo transcription.