The Milky Mist
While some experimenters obtain results almost from the time of the
first trial, others find that it requires a number of sittings before
they begin to obtain even faint results. The psychic picture in the
crystal usually begins by the appearance of a cloudy "milky mist,"
succeeding the former transparent appearance of the crystal. The milky
cloud becomes more dense, and finally there appears in its midst a
faint form, outline, face, or scene of some kind. Some have compared
this gradual emergence of the picture to the gradual development of the
picture of the photographic plate when the latter is subjected to the
action of the developing fluid.