A Treatise on Physiology and Hygiene for Educational Institutions and General Readers (Google eBook)

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Clark & Maynard, 1875 - Human physiology - 270 pages
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Page 122 - The smooth, soft air with pulse-like waves Flows murmuring through its hidden caves, Whose streams of brightening purple rush, Fired with a new and livelier blush, While all their burden of decay The ebbing current steals away, And red with Nature's flame they start From the warm fountains of the heart. No rest that throbbing slave may ask...
Page 251 - Repeat these movements deliberately and perseveringly, fifteen times only in a minute. (When the patient lies on the thorax, this cavity is compressed by the weight of the body, and expiration takes place. When he is turned on the side, this pressure is removed, and inspiration occurs.) 6th. When the...
Page 131 - The air is not a simple element, as the ancients supposed, but is formed by the mingling of two gases, known to the chemist as oxygen and nitrogen, in the proportion of one part of the former to four parts of the Latter. These gases are very unlike, being almost opposite in their properties : nitrogen is weak, inert, and cannot support life; while oxygen is powerful, and incessantly active, and is the essential element which gives to the atmosphere its power to support life and combustion. The discovery...
Page 50 - August, about one in the afternoon, my mother desired him to observe a cloud which appeared of a very unusual size and shape. He had just returned from taking the benefit of the sun*, and after bathing himself in cold water, and taking a slight repast, was retired to his study.
Page 52 - Protection against Heat. -Texture has nothing to do with protection from the direct solar rays ; this depends entirely on color. White is the best color ; then gray, yellow, pink, blue, black. In hot countries therefore, white or light-gray clothing should be chosen. In the shade the effect of color is not marked. The thickness and the conducting power of the material are the conditions (especially the former) which influence heat.
Page 147 - ... Those who habitually take in fresh breath will probably grow up large, strong, ruddy, cheerful, active, clear-headed, fit for their work. Those who habitually take in the breath which has been breathed out by themselves, or any other living creature, will certainly grow up, if they grow up at all, small, weak, pale, nervous, depressed, unfit for work, and tempted continually to resort to stimulants, and become drunkards.
Page 63 - Leviticus it is expressly commanded as one of the ordinances of Moses, that every oblation of meat upon the altar shall be seasoned with salt, without lacking ; and hence it Is called the Salt of the Covenant of God. The Greeks and Romans also used salt in their sacrificial cakes ; and it is still used in the services of the Latin church— the...
Page 258 - LAR'YNX (Gr.). The cartilaginous tube situated at the top of the windpipe, or trachea ; the organ of the voice. LENS (L. ) Literally, a lentil ; a piece of transparent glass or other substance so shaped as either to converge or disperse the rays of light. LIG'A-MENT (L.
Page 52 - Who has not observed the purifying effect of light, and especially of direct sunlight, upon the air of a room ? Here is an observation within everybody's experience. Go into a room where the shutters are always shut (in a sick-room or a bed-room there should never be shutters shut), and though the room be uninhabited — though the air has never been polluted by the breathing of human beings, you will observe a close, musty smell of corrupt air — of air unpurified by the effect of the sun's rays.
Page 258 - MAR'ROW. The soft, fatty substance contained in the central cavities of the bones : the spinal marrow, however, is composed of nervous tissue. HAS-TI-CA'TION (L. mas'tico, to chew). The act of cutting and grinding the food to pieces by means of the teeth. ME-DUL'LA OB-LON-GA'TA. The "oblong marrow," or nervous cord, which is continuous with the spinal cord within the skull.

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