A Treatise on Physiology and Hygiene for Educational Institutions and General ReadersClark & Maynard, 1875 - 270 pages |
Other editions - View all
Common terms and phrases
action animals arteries article of food bath become blood blood-vessels bones brain bread breath called capillaries carbonic acid cartilage cause cavity cerebellum cerebrum chest circulation cold color contain corpuscles crystalline lens delicate diet digestion disease effects end of Chapter epiglottis exercise external eyeball fibres fluid functions gastric juice glands gray matter hearing heart heat human body important impure inch injury intestines juice lacteals larynx lens limb lungs matter meat medulla oblongata membrane microscope motion mouth movements mucous membrane muscles muscular nerve nervous objects odor organs oxygen pain papillæ persons poisonous portion produced quantity Read Note reflex reflex action respiration retina saliva salt sensation sense side sight skin smell sound spinal cord spinal nerves starch stomach structure substances sugar supply surface takes place taste teeth temperature tion tissues tongue touch trachea tube vegetable veins Ventriloquism vessels voice
Popular passages
Page 121 - 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 146 - Softer than the softest down — more impalpable than the finest gossamer — it leaves the cobweb undisturbed, and scarcely stirs the lightest flower that feeds on the dew it supplies ; yet it bears the fleets of nations on its wings around the world, and crushes the most refractory substances with its weight.
Page 175 - Tic-tac! tic-tac! go the wheels of thought; our will cannot stop them; they cannot stop themselves; sleep cannot still them; madness only makes them go faster; death alone can break into the case, and, seizing the ever-swinging pendulum, which we call the heart, silence at last the clicking of the terrible escapement we have carried so long beneath our wrinkled foreheads.
Page 63 - Animals will travel long distances to obtain salt ; men will barter gold for it ; indeed, among the Gallas and on the coast of Sierra Leone, brothers will sell their sisters, husbands their wives, and parents their children, for salt. In the district of Accra, on the Gold Coast of Africa, a handful of salt is the most valuable thing upon earth after gold, and will purchase a slave or two. Mungo Park tells us that with the Mandingoes and Bambaras the use of salt is such a luxury that to say of a man,...
Page 129 - 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 146 - It warms and cools by turns the earth and the living creatures that inhabit it. It draws up vapours from the sea and land, retains them dissolved in itself, or suspended in cisterns of clouds, and throws them down again as rain or dew when they are required.
Page 225 - ... to hook up a heavy piece of meat above his head, slipped, and the sharp hook penetrated his arm, so that he himself was suspended. On being examined, he was pale, almost pulseless, and expressed himself as suffering acute agony. The arm could not be moved without causing excessive pain, and in cutting off the sleeve he frequently cried out ; yet when the arm was exposed it was found to be quite uninjured, the hook having only traversed the sleeve of his coat.
Page 146 - We should have no twilight to soften and beautify the landscape, no clouds to shade us from the scorching heat ; but the bald earth, as it revolved on its axis, would turn its tanned and weakened front to the full and unmitigated rays of the lord of day.
Page 40 - ... health is the uniform and regular performance of all the functions of the body, arising from the harmonious action of all its parts — a physical condition implying that all are sound, wellfitting, and well-matched.
Page 50 - He was at that time with the fleet under his command at Misenum. On the 24th of 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.