How much truth there may be in this new "_science_," as it is called, I am not prepared to say; but, as sometimes held forth, it seems to me not only to clash with some of the most important principles of mental philosophy, but to make the power of thought the result of that which is in itself inert and unthinking.

Assuming that the primitive faculties of the human understanding have not been known in earlier times, it professes to have discovered, in the physical organization of the brain, their proper source, or essential condition, and the true index to their measure, number, and distribution.

In short, the leading phrenologists, by acknowledging no spiritual substance, virtually deny that ancient doctrine, "It is not in flesh to think, or bones to reason," [42] and make the mind either a material substance, or a mere mode without substantial being.
14.

"The doctrine of _immaterial substances_," says Dr.Spurzheim, "is not sufficiently amenable to the test of observation; it is founded on belief, and only supported by hypothesis."-- _Phrenology_, Vol.

i, p.20.But it should be remembered, that our notion of material substance, is just as much a matter of hypothesis.