A History of Science, Volume 4 |
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acid action anatomy animal anthrax appear artery Assyrian atomic weights atoms blood body brain carbon cause centres century cerebrum chemical chemistry chemists clew color combustion compound Darwin demonstrated developed digestion discovered discovery disease doctrine elements Erasmus Darwin existence experimental experiments fact famous fermentation fibre fibrils flask function ganglion cells gastric juice germs heat hence histologist hitherto Hunter hydrogen idea important inoculated inscription investigations juice known Lamarck later leaves lungs matter medicine medulla medulla oblongata medulla spinalis ment method microbe microscope mind molecule muscles muscular nature nerve cell nerve tracts nervous system nitrous oxide nucleus observations organism original oxygen Pasteur periments phlogiston phlogiston theory physician physiology plants Priestley produced proved respiration Rosetta Stone Schwann scientific seemed sensation similar soon structure studies substance surface temperature Theodor Schwann theory tion tissues transmutation of species vegetable virulence virus weights
Popular passages
Page 169 - Continent ; and thirdly, by the South American character of most of the productions of the Galapagos archipelago, and more especially by the manner in which they differ slightly on each island of the group ; none of the islands appearing to be very ancient in a geological sense.
Page 214 - As nitrous oxide in its extensive operation appears capable of destroying physical pain, it may probably be used with advantage during surgical operations in which no great effusion of blood takes place.
Page 104 - Every organized individual forms an entire system of its own, all the parts of which naturally correspond, and concur to produce a certain definite purpose, by reciprocal reaction, or by combining towards the same end. Hence none of these separate parts can change their forms without a corresponding change in the other parts of the same animal, and consequently each of these parts, taken separately, indicates all the other parts to which it has belonged.
Page 104 - Thus, if the viscera of an animal are so organized as only to be fitted for the digestion of recent flesh, it is also requisite that the jaws should be so constructed as to fit them for devouring prey; the claws must be constructed for seizing and tearing it in pieces; the teeth for cutting and dividing its flesh; the entire system of the limbs or organs of motion for pursuing and overtaking it; and the organs of sense for discovering it at a distance.
Page 79 - I could teach him that on the dead body which he never knew in any language, dead or living.
Page 214 - I walked round the room, perfectly regardless of what was said to me. As I recovered my former state of mind, I felt an inclination to communicate the discoveries I had made during the experiment. I endeavoured to recall the ideas : they were feeble and indistinct...
Page 196 - The animals become indisposed, and the secretion of milk is much lessened. Inflamed spots now begin to appear on different parts of the hands of the domestics employed in milking, and sometimes on the wrists, which quickly run on to suppuration, first assuming the appearance of the small vesications produced by a burn. Most commonly they appear about the joints of the fingers and at their extremities ; but whatever parts are affected, if the situation will admit, these superficial suppurations put...
Page 196 - Grease, and not paying due attention to cleanliness, incautiously bears his part in milking the Cows, with some particles of the infectious matter adhering to his fingers. When this is the case, it commonly happens that a disease is communicated to the Cows, and from the Cows to the Dairy-maids, which spreads through the farm until most of the cattle and domestics feel its unpleasant consequences. This disease has obtained the name of the Cow-pox.
Page 106 - ... a claw, a shoulderblade, a condyle, a leg or arm bone, or any other bone, separately considered, enables us to discover the description of teeth to which they have belonged ; and so also reciprocally we may determine the forms of the other bones from the teeth. Thus, commencing our investigation by a careful survey of any one bone by itself, a person who is sufficiently master of the laws of organic structure, may, as it were, reconstruct the whole animal to which that bone had belonged.
Page 6 - The difficulty we find of keeping flame and fire alive, though but for a little time, without air, makes me sometimes prone to suspect, that there may be dispersed through the rest of the atmosphere some odd substance, either of a solar, or astral, or some other exotic nature, on whose account the air is so necessary to the subsistence of flame...