If the theory of phrenology is true, then, if a person should have an accident or a disease, and lose a portion of his brain, he will lose control of those faculties which are supposed to be located within the lost part. Now, every physician knows of cases where patients have lost portions of their brains, and you will probably not find a single case where the patient lost control of the precise faculty said to be located in that portion. The medical books are full of proof of this. Once in a while a physician has to remove a portion of the brain where the faculty of, say tune, is located, or it is destroyed by accident or disease, but after the operation the patient has the same fondness and talent for music that he formerly had. The brains of able men have been examined after death, and certain portions have been found to be diseased; yet the patients had shown no signs of having lost any of their faculties. These examples show that the brain is not and cannot be composed of a plurality of organs, each of which is the seat of a separate faculty, as claimed by the phrenologists, because if such were the case the destruction of one of these organs would result in the destruction of the particular faculty connected with it. Again, the phrenologist assumes that all skulls are of the same thickness, and that every skull is of the same thickness at every point. There are variations of this rule, as he will tell you, but in the main the statement is true; for, if it were not so, bumps and indentations would be almost meaningless. But the fact is that some skulls are only one-eighth of an inch thick and some are a full inch in thickness. And there is no certain way of telling just how thick a skull is, except by an examination of its interior and not every subject is willing to undergo this inconvenience. The phrenologist may thump it with his knuckle and sound it, but he can never be certain how near he is to the brain nor how much brains are within. And still again, nearly every skull has thin parts and thick parts, and in some heads there are actual cavities in places. So, even if the size of the brain is the sure test of mentality, how is one to tell the size of a brain which is incased in a skull of unknown and variable thickness?