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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1868 Excerpt: ...complains of the cold, and changes his summer for his winter clothing. Both these men are exposed to the same temperature, but have very opposite sensations. 516. Every thing which depresses the power and energies of life diminishes the production of internal heat, ( 434, p. 186, ) and also lessens the protective power of the skin against the external cold. Under the influence of hunger and fatigue, and the consequences of exhausting disease, and when overborne by the depressing passions and emotions--grief, despondency, anxiety, and fear, --the skin has less power to defend us from the extremes of heat and cold, -nd we are then more uncomfortably hot in high temperamre, and suffer more from the low. But the contrary happens when we are well-fed and fresh, when we are vigorous and cheerful, and when we are animated with hope or ex'ilarated with confidence. CHAPTER IX. Clothing needed to prevent excessive Radiation of Heat.--Parts usually clothed need more Protection than others.--Habit of Dressing affects the Necessity.--No positive Law for the Amount of Clothing. 517. The skin is thus shown to perform three offices. It carries off much of the waste of the system, by means of perspiration, oil, and carbonic acid. It absorbs some matters from the atmosphere and other contiguous substances. It regulates the transfer of heat from within outward, and prevents its coming inward from without. 518. It is a natural question to ask, whether the skin can do this alone, or does it require our aid to enable it to perform these functions faithfully and successfully? We are so much the creatures of habit, we have been so accustomed, through many years, and even from generation to generation, to cover the body with clothing, that it is not easy to tell how great ...

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