But why should the spirituality of the soul be more affected by the one set of organs than it was by the other?
The ablest advocates of Phrenology have repudiated Materialism.
Dr.Spurzheim expressly disclaims it.

"I incessantly repeat," says he, "that the aim of Phrenology is never to attempt pointing out _what the mind is in itself_.

I do not say that the organization produces the affective and intellectual faculties of man's mind, as a tree brings forth fruit or an animal procreates its kind; I only say that organic conditions are necessary to every manifestation of mind."-- "If the manifestation of the faculties of the mind depend on organization, Materialism, it is said, will be established....

When our antagonists, however, maintain that we are Materialists, they ought to show where we teach _that there is nothing but matter._ The entire falsehood of the accusation is made obvious by a review of the following considerations.
The expression 'organ' designates an instrument by means of which some faculty proclaims itself.

The muscles, for example, are the organs of voluntary motion, but they are not the moving power; the eyes are the organ of sight, but they are not the faculty of seeing.