Ceroscopy
System of divination by wax. Fine wax was melted in a brass
vessel until it became a liquid of uniform consistency. It was
then poured slowly into another vessel filled with cold water in
such a way that the wax congealed in tiny disks upon the surface
of the water. The magician then interpreted the wax figures.
Sources
Waite, Arthur Edward. The Occult Sciences. N.p., 1891. Reprint,
Secaucus, N.J. University Books, 1974.