21/36 In all such cases the mistake of judgment would have to be allowed for if masses of unequal size lie at the ends of the line which is to be divided. _The Accuracy of Memory._--Another investigation may be cited to illustrate quite a different department. It aimed to find out something about the rate at which memory fades with the lapse of time. W., S., and B.[7] began by formulating the different ways in which tests may be made on individuals to see how accurate their memories are after different periods of time. They found that three different tests might be employed, and called them "methods" of investigating memory. |