same as the former one, but I do not regard this fact as very
significant. I state only that it is easier to judge in one case than
in the other; how much easier may depend on various factors.

To carry the point still further I took only two bullets, one over the
second phalanx of each middle finger. When the fingers were spread the
two were never felt as one. When the fingers were together they were
often felt as one.

The next step was to investigate the effect of bringing together the
fingers of opposite hands. I asked the subject to clasp his hands in
such a way that the second phalanges would be about even. I could not
use the same apparatus conveniently with the hands in this position,
but in order to have the contacts as similar as possible to those I
had been using, I took four of the same kind of bullets and fastened
them to the ends of two æsthesiometers. This enabled me to give four
contacts at once. However, only two were necessary to show that
contacts on fingers of opposite hands could be made to 'fuse' by
putting the fingers together. If two contacts are given on contiguous
fingers, they are quite as likely to be perceived as one when the
fingers are fingers of opposite hands, as when they are contiguous
fingers of the same hand.

These results seem to show that one of the important elements of
fusion is the actual space relations of the points stimulated. The
reports of the subjects also showed that generally and perhaps always
they located the points in space and then remembered what finger
occupied that place. It was not uncommon for a subject to report a
contact on each of two adjacent fingers and one in between where he
had no finger. A moment's reflection would usually tell him it must be