Man has been very little improved in this direction, the dark eye, except in the north of Europe, having been, until recent times, almost or quite universal. The blue eye does not seem to have any advantage for man in a state of nature, being mild where fierceness of expression is required; it is almost unknown amongst the inferior creatures; and only on the supposition that the appearance of the eye is less important to man’s welfare than it is to that of other species can we account for its survival in a branch of the human race. Little, however, as the human eye has changed, assuming it to have been dark originally, there is a great deal of spontaneous variation in individuals, light hazel and blue-grey being apparently the most variable. I have found curiously marked and spotted eyes not uncommon; in some instances the spots being so black, round, and large as to produce the appearance of eyes with clusters of pupils on them. I have known one person with large brown spots on light blue-grey eyes, whose children all inherited the peculiarity; also another with reddish hazel irides thickly marked with fine characters resembling Greek letters. This person was an Argentine of Spanish blood, and was called by his neighbors _ojos escritos_, or written eyes. It struck me as a very curious circumstance that these eyes, both in their ground color and the form and disposition of the markings traced on them, were precisely like the eyes of a common species of grebe, _Podiceps rollandi_. But we look in vain amongst men for the splendid crimson, flaming yellow, or startling white orbs which would have made the dark-skinned brave inspired by violent emotions a being terrible to see. Nature has neglected man in this respect, and it is to remedy the omission that he stains his face with bright pigments and crowns his head with eagles’ barred plumes.