fashion; and outwardly I always felt oddly constrained to be polite and
respectful towards it--to open doors, provide chairs and hold myself
carefully deferential when it was about. It became very compelling at
last, and, if I failed in any little particular, I seemed to know that
it pursued me about the house, from one room to another, haunting my
very soul in its inmost abode. It certainly came before my wife so far
as my attentions were concerned.

"But, let me first finish the story of my experimental dose, for I took
it again the third night, and underwent a very similar experience,
delayed like the first in coming, and then carrying me off my feet when
it did come with a rush of this false demon-laughter. This time,
however, there was a reversal of the changed scale of space and time; it
shortened instead of lengthened, so that I dressed and got downstairs in
about twenty seconds, and the couple of hours I stayed and worked in the
study passed literally like a period of ten minutes."

"That is often true of an overdose," interjected the doctor, "and you
may go a mile in a few minutes, or a few yards in a quarter of an hour.
It is quite incomprehensible to those who have never experienced it, and
is a curious proof that time and space are merely forms of thought."

"This time," Pender went on, talking more and more rapidly in his
excitement, "another extraordinary effect came to me, and I experienced
a curious changing of the senses, so that I perceived external things
through one large main sense-channel instead of through the five
divisions known as sight, smell, touch, and so forth. You will, I know,
understand me when I tell you that I _heard_ sights and _saw_ sounds. No
language can make this comprehensible, of course, and I can only say,
for instance, that the striking of the clock I saw as a visible picture