n and Greek theological books,
which she had heard under the same circumstances; in her normal state,
she had no recollection whatever of all this. (Dr. Carpenter's _Mental
Physiology_, p. 437, 1881 edition.)

Ricard (_Physiol. et Hygiene du Magnet._, p. 183) relates the case of
a young man, possessed of an ordinary memory, but who, in
somnambulism, could repeat almost word for word a sermon he had heard
or a book he had read.

Mayo, the physiologist, states that an ignorant young girl, in a state
of somnambulism, wrote whole pages of a treatise on astronomy,
including figures and calculations, which she had probably read in the
_Encyclopaedia Britannica_, for the treatise was afterwards found in
that work. (_Truths in Popular Superstitions._)

Ladame (_La Nevrose hypnotique_, p. 105) mentions a woman who, having
only on one occasion been to the theatre, was able, during
somnambulism, to sing the whole of the second act of Meyerbeer's
_L'Africaine_, an opera of which she knew nothing whatever in her
waking state.

During experiments with the inhaling of protoxyde of azote, H. Davy
said that normal consciousness disappeared, and was followed by a
wonderful power of recalling past events. (Hibbert's _Philosophy of
Apparitions_, p. 162.)

MANIFESTATIONS OF THE HIGHER CONSCIOUSNESS IN PHENOMENA OF DOUBLE
CONSCIOUSNESS.

The "strata of memory" met with in many cases also prove the existence
of the second vehicle of consciousness which we are trying to
demonstrate.

Certain dreams continue night after night, beginning again just where
they stopped the previous night; this is noticed in the case of those
who talk in their sleep and in spontaneous or forced somnambulism.

The memory of one intoxicated, or in a state of fever delirium is lost
when consciousness returns from the astral to the physical body; it
comes back on the return of the delirium or the intoxication.

The same thing takes place in madness; at the termination of a crisis,
the patients take up the past just where they left it. (Wienholt's
_Heilkraft_.) Kerner relates that one of these unfortunate persons,
after an illness lasting several years, remembered the last thing he
did before the crisis happened, his first question being whether the
tools with which he had been cutting up wood had been put away. During
the whole of the interval he had been living in his higher
consciousness.

Ribot (_Maladies de la Memoire_ p. 63) has noted the fact that