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Classification of the Sci
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us in referring the forms to their true classes. For example, Prof. Petrie found in the town of Naucratis some hundred and eighty standard weights. The calculus of probabilities applied to their weight-values proves that they were intended to conform to five different quasi-prototypes; but many of the weights, owing to the imperfection of their manufacture, have intermediate values, so that, as far as this governing intended character goes, it would be impossible to say to which standard any one such intermediate weight was intended to conform. But if we take into consideration their shapes, their material, and the perfection of their execution, characters in regard to which there was no distinctive intention, much may be done toward assigning the individual weights to their intended classes.

Every purpose, although it relates to action upon an individual subject is in itself general. In the inception of its first fulfillment, whether in reality or in ima-