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action animals arteries article of food bath become blood blood-vessels bones brain bread breath called canal capillaries carbonic acid cartilage cause cavity cerebellum cerebrum circulation cold color contain contraction corpuscles crystalline lens delicate diet digestion disease effects exercise external eyeball fibres fingers fluid functions gastric juice give glands gray matter heart heat important impure inch injury internal ear intestines lacteals larynx lens light limb lungs meat medulla medulla oblongata membrane microscope middle ear milk minute motion movements mucous membrane muscles muscular nerve nervous object odor organs oxygen pain persons perspiration poisonous portion produced quantity Read Note reflex reflex action respiration retina saliva salt sensation sense sensibility side sight skin smell spinal cord spinal nerves starch stomach substances sugar supply surface takes place taste teeth temperature tion tissues tongue touch trachea tube vegetable veins ventricle vessels
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.
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.
Page 176 - 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 146 - ... 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 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 250 - 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 122 - ... body. Wherever the blood is sent, changes of a healthful character occur. The brain and the rest of the nervous system are invigorated, the stomach has its powers of digestion improved, and the liver, pancreas, and other organs perform their functions with more vigor.
Page 24 - The power of bone to resist decay is remarkable. Fossil bones deposited in the ground long before the appearance of man upon the earth have been found by Cuvier exhibiting a considerable portion of cartilage. The jaw of the Cambridge mastodon contained over forty per cent, of animal matter — enough to make a good glue — and others about the same. From this we see that a nutritious soup might be made from the bones of animals that lived before the creation of man. The teeth resemble bone in their...
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.
Page 64 - 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, ' he flavors his food with salt...