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Rh ? Of course we can say that the connection is more intimate between the parts of an organism than between the organisms of Nature. But what do we mean by a more intimate connection? Can an absolute difference of result depend on anything so relative? And does not Nature as a whole show as strict a connection as any organism does,—yea, one even more indissoluble? And the same questions come up within each organism. How comes it that, with different nerve-fibres of touch and sight, we distinguish different space-points, but with one fibre distinguish nothing, although the different fibres are connected in the brain just as much as the parts are in the single fibre? We may again call the latter connection the more intimate, but then the same sort of question will arise again.

"Unquestionably the problem which here lies before Psycho-physics cannot be sharply answered; but we may establish a general point of view for its treatment, consistently with what we laid down in a former chapter on the relations of more general with more particular phenomena of consciousness."

[The earlier passage is here inserted:] "The essential principle is this: That human psycho-physical activity must exceed a certain intensity for any waking consciousness at all to occur, and