‘When you want to work on a wall, which is the most agreeable kind of work, first of all get some lime and some sand, each of them well sifted, and let the lime be very fat and fresh ….’

‘When you are ready to plaster, first sweep the wall well, and wet it down thoroughly, for you cannot get it too wet.’

‘The Craftsman’s Handbook’. Cenino Cennini  c 1420