ABSTRACT
THE question might, with some show of reason, be raised as to whether the law which we have discovered is valid for our quantitative estimation of sensation-magnitudes in general, or whether it possesses only a more limited importance. For all that we have directly ascertained is this: in what proportion the just noticeable sensation-difference stands to the stimulus-increment which conditions it. But, as a matter of fact, it will be easily seen that the determination of this proportion is simply a special case in the determination of a more general relation of dependency.
