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is to comprehend and classify them, there are none; those thought to be such, are themselves sensations. Feel your way, feel on and feel ever, would be the comprehensive direction to a being we can scarcely say mind, for the mind is now resolved into mere sensibility so formed. Feel space, feel time, feel number, and look to your finger-ends for liberty and right, or eternally lose them.

Let us carefully guard against one point of misapprehension. "We say nothing as to any definite time in the progress of the infant in which the idea of space will arise. Sensations as sensations may come and go, we know not how long, without evoking the idea; but when it does come, it will come at once from within; not in an abstract, discriminated form, but in a concrete, obscure application, and prepare the way for a new series of intellectual actions. All precise estimates and measurements are, of course, the sole fruit of experience, and give the infant mind abundant occupation under this regulative idea.

One may study geometry with little or no abstract consideration of space as space, yet the idea is tacitly present everywhere. The child may come to a knowledge of the position and dimension of its own members, with no direction of the mind to the notion of space as such, though that idea quietly informs the whole process.

In the second of the longer quotations above given from Spencer, we have the notion of space, empty space, derived from a vacant organ of sense. Direct the mind steadily to this point. An organ, as the finger-end, or the eye, with no content of sensation in it, a simple blank, is one thing; and this fact accounted for and explained to the mind by the idea of empty space is quite another. If the first, generalized in any way he pleases, is Spencer's idea of space, then that idea consists in the mere absence of sensation, and should exist in the highest degree in connection