reason of the man's fall, and also of the people's laughter.

Now, take the case of a person who attends to the petty occupations
of his everyday life with mathematical precision. The objects around
him, however, have all been tampered with by a mischievous wag, the
result being that when he dips his pen into the inkstand he draws it
out all covered with mud, when he fancies he is sitting down on a
solid chair he finds himself sprawling on the floor, in a word his
actions are all topsy-turvy or mere beating the air, while in every
case the effect is invariably one of momentum. Habit has given the
impulse: what was wanted was to check the movement or deflect it. He
did nothing of the sort, but continued like a machine in the same
straight line. The victim, then, of a practical joke is in a
position similar to that of a runner who falls,--he is comic for the
same reason. The laughable element in both cases consists of a
certain MECHANICAL INELASTICITY, just where one would expect to find
the wide-awake adaptability and the living pliableness of a human
being. The only difference in the two cases is that the former
happened of itself, whilst the latter was obtained artificially. In
the first instance, the passer-by does nothing but look on, but in
the second the mischievous wag intervenes.

All the same, in both cases the result has been brought about by an
external circumstance. The comic is therefore accidental: it
remains, so to speak, in superficial contact with the person. How is
it to penetrate within? The necessary conditions will be fulfilled
when mechanical rigidity no longer requires for its manifestation a
stumbling-block which either the hazard of circumstance or human
knavery has set in its way, but extracts by natural processes, from
its own store, an inexhaustible series of opportunities for