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Prag 20
therefore active. The consequence is that if an excitation continues, the reaction will usually become, for a while, more and more violent, changing its mode several times, until some reactional motion happens to cause the cessation of the motion. But this does not as usually happen, because, in consequence of the fourth property of the reaction-machine, the excitation will be brought to an end more promptly.
4; An excitation, E', that is similar to a previous excitation, E, or to several previous excitation, has a particular tendency to be followed by reactions, R, S, T, etc. , that have ensued upon such previous excitations, and this tendency is stronger the more similar the excitation, and the more frequently