By physiologists, this muscular sense is not included in the list of “special” senses, because it cannot be localized in any one set of nerves. It is nearest allied to the special sense of Touch, which is centred in certain “tactile corpuscles,” distributed irregularly beneath the skin, principally on the finger-tips. They are extremely useful, but not prominently serviceable in the production of pleasurable sensations. The stroking of soft and warm substances, such as velvet and fur, excites agreeable impressions, but they are not very keen. Irritations to the skin are a source of acute annoyance, but their removal affords merely a negatively acceptable condition. When we consider how slightly most sensations of touch excite subjective states of mind, it is remarkable that in response to one stimulant they are among the most powerful known in nature. This stimulus is that of another personality. The most positive feelings of both aversion and attraction are those excited by physical contact of the naked flesh. This is why it has been accepted in so many countries as a sign and proof of amity. The savage Africans touch noses and the civilized European shakes hands or kisses the hand or the cheek. Such actions are barren conventionalities, unaccompanied by either pleasure or pain; but they are indeed unfortunate who cannot recall any moment of heart’s utmost joy and triumph when “the spirits rushed together at the touching of the lips.” Such moments are sacred, priceless gifts of the gods, not to be had for gold nor secured by taking thought, so their consideration has no place in this book. In spite of the active business done at the perfumery counters, the pleasures of the sense of Smell do not seem to come in for a large share of admiration in the modern world. It was different in the days of old. They were considered the most delightful of all, even to Divinity itself. Among the earliest rites of religion was that of burning aromatic incense to the gods; and in the books of Moses good works are described as affording “a sweet savor of satisfaction” to the Almighty. One of the Fathers of the Church speaks of a holy prayer as “the perfume of a just soul” rising to Heaven; and when a good man passed away he was said to die “in the odor of sanctity.” Such solemn authorities should justify the cultivation of the pleasures of this sense. They could be supported by abundant quotations from those philosophers, the poets, who have much to say about “the spicy gales of Araby the blest,” and other such odoriferous associations.