pens up a very important matter connected with
all psychic phenomena, and one that deserves more than casual
notice. It has been long known to the people of the East that there
is an intimate connection between brain and lung action, and
modern experiment has shown by means of the spirometer that
the systole and diastole motion of the hemispheres of the brain
coincide exactly with the respiration of the lungs. The brain
as the organ of the mind registers every emotion with unerring
precision. But so also do the lungs, as a few common observations
will prove. Thus if a person is in deep thought the breathing
will be found to be long and regular, but if the mind is
agitated the breathing will be short and stertorous, while if fear
affects the mind the breathing is momentarily suspended. A
person never breathes from the base of the lung unless his mind
is engrossed. Hard exercise demands deep breathing and is
therefore helpful in producing good mental reactions. It is said
that the great preacher De Witt Talmage used to shovel gravel
from one side of his cellar to the other as a preliminary to his fine
elocutional efforts. It is this obvious connection between
respiration and mental processes which is at the base of the
system of psycho-physical culture known as _Hatha Yoga_ in
distinction from _Raj Yoga_, which is concerned solely with
mental and spiritual development. The two systems, which have
of late years found frequent exposition in the New Thought
school, are to be found in Patanjali's _Yoga sutra_. Some
reference to the synchronous action of lung and brain will also be
found in Dr. Tafel's translation and exposition of Swedenborg's
luminous work on _The Brain_. In this work the Swedish seer
frankly refers his illumination regarding the functions of the brain
to his faculty of introspective vision or second sight, and it is of
interest to observe that all the more important discoveries in this
department of physiology during the last two centuries are clearly
anticipated by him. The scientific works of this great thinker are
far too little known by the majority, who are apt to regard him
only as a visionary and a religious teacher.

_Ad rem_. The vision is produced. The faculty of clairvoyance is
an established fact of experience and has become more or less
under the control of the mind. There will yet remain one or two
difficulties connected with the visions. One is that of time
measure, and another that of int