THE COMMON GREENISH-GRAY SNAIL MARBLE.
To produce this the colors are thrown on in the following order, black, light-blue (two parts water, one part Oriental blue,) Indian yellow, pink, light red, gall water, and, finally, the body color, composed of one part black and two to three parts sprinkling water according as the demand is for a lighter or darker body color. Throw the colors on the same as in producing the grey marble, (see [marbled edges]) and when the ground color is thrown on draw the marble into snails and take off.