Page:The American Journal of Psychology Volume 1.djvu/84

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HALL AND MOTORA

In Table II the initial or threshold weight is con- stantly 50 grammes, which from Table I seems about the most favorable for all individuals for further exploring the psycho-physic relation here, and the rate of differentiation varies from T ^ to jfa of this threshold value per second, the numbers as before representing seconds and each expressing an average of twenty single records.