OF METHOD. 29
wooden lining that made her float, but her hollowness, or, as I would now phrase it, her displacement of water. In such ways as this, with which we are all f amiliar, we can isolate, analyze or combine economic principles, and, by extending or diminishing the scale of propositions, either subject them to inspection through a mental magnifying glass or bring a larger field into view. And this each one can do for himself. In the inquiry upon which we are about to enter, all I ask of the reader is that he shall in nothing trust to me.