'''Codex Sloane 4016 is a 15th century Italian parchment manuscript belonging to a class of books known as herbals. These medicinal treatises recorded knowledge accumulated in the oral tradition about plants believed to possess therapeutic properties.'' Miniature of the balsam garden of Cairo (Fustat), with seven pools of water and jars to catch the balsam, a plant in the centre, with two knights in armour flanking the gate, with shields with heraldic arms.'