<p style='text-align: justify;'>Recto: theoretical assessment of the causes of diarrhoea (the disintegration of stool in intestines) and a cure for it; preparation of a powder with a mixture of rose seeds, sandalwood, coriander, purslane, chalk, oak, chestnut and mastic. Mention of Avicenna, Al-qanūn fī l-ṭibb (‘Canon of medicine’). Verso: literary passage in Arabic, followed by poetic verses.</p>