Paris, 1829.
{66} Readers curious in crystal-gazing will find an interesting sketch of the history of the practice, with many modern instances, in Proceedings, S.P.R., vol.v., p.

486, by "Miss X.".

There are also experiments by Lord Stanhope and Dr.Gregory in Gregory's Letters on Animal Magnetism, p.

370 (1851).

It is said that, as sights may be seen in a glass ball, so articulate voices, by a similar illusion, can be heard in a sea shell, when "It remembers its august abodes, And murmurs as the ocean murmurs there".
{68} A set of scientific men, as Lelut and Lombroso, seem to think that a hallucination stamps a man as _mad_.