As binding medium between the gold-leaf and the edge of the book, a solution of the white of the egg is used. Carefully separate the white of the egg from the yolk and dilute the same with 1 pint of water and stir until a perfect mixture of the two results. After this fluid has stood for several hours, it becomes perfectly clear, the froth of the egg floating upon the surface is removed and the solution is ready for use.
Paper containing lime makes a stronger size necessary.
To transfer the gold-leaf, which has been cut on the gold cushion to the size required, on to the edge, a rectangular light wooden frame of wood or paste board is used, across which two horse hairs or silk threads are stretched parallel to the long sides of the rectangle in such a way that they can be moved at will nearer to or farther from one another.