In applying these postulates to a delineation of character before we pass to an examination of the brain itself, we must notice three great modifying conditions. Without taking these modifying conditions into account, a correct estimate of brain-power is impossible. And it is because these modifying conditions have been ignored by many professed teachers of Phrenology, and but poorly expressed by others who did recognize them, that many eminent physiologists have condemned phrenology hastily, as having no sound basis in physiology. The exponents of Phrenology are themselves to blame for this. They have been too content to rest under the imputation of feeling heads for bumps. They have not been sufficiently versed, in many instances, in physiological science to dare to debate the ground with high authorities. I challenge the world to bring one single natural fact to militate against the principles here announced. I will debate the question with any skilled medical, legal or clerical authority, and I claim, without fear of contradiction, that the world does not hold a head whose character will differ from that which Phrenology ascribes to it, when the developments of the brain are measured in the light of these modifying conditions. When I was lecturing in Indiana in 1885, Gov. Will Cumback of that state, propounded this question: "Professor, what would you do if you found a man whose head, in the light of Phrenological principles, showed a certain character, and you found on intimate acquaintance and positive proof that he, in fact, possessed a character radically different." "My dear Governor," I replied, "I would wait until the sun rose in the west, and then watch to see what you would do and follow suit. Such men do not exist, they never have existed, and they never will exist until the order of nature is reversed." These three great modifying conditions which must be taken into consideration before we estimate the brain itself, are as follows: 1st. The State of the Health. 2nd. The Quality of the Organization. 3rd. The Temperament of the Constitution. And we will consider them in the order named, therefore first, THE STATE OF THE HEALTH.