Harmony.--But, it will be urged, if beauty is a poor argument, at least you must grant that the general harmony in Nature still remains to be accounted for. Beauty is only one of its countless harmonies. The objection to this argument is a very simple one. Nature is full of discords. Ugliness is by no means the only discord. It is because this is so little realised that M. Elie Metchnikoff has devoted nearly the whole of his book, The Nature of Man, to the discussion of the disharmonies in man's nature alone. There are disharmonies in the organisation of the digestive system, in the organisation and activities of the reproductive apparatus, in the family and social instincts, and in the instinct of self-preservation, etc. For instance, in the human body there are disharmonies of the wisdom teeth, the bête-noire of dentistry; of the useless vermiform appendage, the seat of the disease appendicitis; of the large intestine, which could very well be dispensed with, and is the seat of many grave diseases, such as dysentery, and so on. The perversions of instinct among human beings (another disharmony) are likely to be attributed by the conservative Theist to the Devil, and by the liberal to Dr. Gore's "Fall from Without," so it will be better to take an example from the animal world. Darwin informs us that the "female of one of the emus (Dromoeus irroratus), as soon as she catches sight of her progeny, becomes violently agitated, and, notwithstanding the resistance of the father, appears to use her utmost endeavours to destroy them" (Descent of Man, vol. ii., chap, xvi., pp. 204-205). To those who still hold by this argument I can only recommend a perusal of Professor Metchnikoff's book of disharmonies, and would beg them to remember that it has been written by a man whose profession and attainments entitle his opinions on such a subject to the highest consideration. The cruelty attending the process by which harmony is attained has already been commented upon by me in § 2 of the previous chapter. DIFFERENCES OF OPINION AMONG THEISTIC APOLOGISTS.