<p style='text-align: justify;'>Recto: Part of a scientific treatise discussing the classification of things, distinguishing between group (مجموع), genus (جنس), and species or name (اسم). The example given is 'the science of medicine' (علم الطب), which is the name (اسم) of an item in the group of 'knowledge' (علم) and the genus of 'specialisation' (تخصص); Verso: Arabic jottings. </p>