The Chemical and Physiological Balance of Organic Nature: An EssayH. Balliere, publisher, 219 Regent Street, 1844 - 156 pages |
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The Chemical and Physiological Balance of Organic Nature: An Essay (Classic ... Jean Dumas No preview available - 2018 |
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3ª série absorbed albumen ammonia analysis animals appeared atmosphere atoms of carbon atoms of water blood bonic bonic acid Boussingault burn caloric Carb Carbon Hydrogen Azote carbonate of ammonia carbonic acid carbonic acid exhaled caseine caseum chemical chemistry chim chyle combustion composition constitute consumed contains course decomposition derived Despretz dextrine digestion dried Dumas earth elements exhalation of carbonic experiments fact fatty matter fermentation fibrine fixed Freed from Ashes germination gluten grains grammes heat hydrochloric acid incessantly influence Jerusalem artichoke JOHN ELLIOTSON Lavoisier London lungs manure Messrs nature nitric acid nitrogen numbers observed obtained organic chemistry organic matter organised oxide of ammonium oxygen Payen peas period phenomena phys physiology plants Plates produce quantity of azote quantity of carbonic Recherches respiration Royal Sciences seed shew soil starch sugar sulphate temperature tion tissue trefoil trefoil-seed urea urine weighed wheat whence whilst
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Page 48 - ... them. In their organs, new organic substances may come into existence, but they are always substances more simple, more akin to the elementary state, than those which they have received. By degrees these decompose the organic matters slowly created by plants; they bring them back, little by little, towards the state of carbonic acid, water, azote, and ammonia, a state which allows them to be returned to the air. In burning or destroying these organic matters, animals always produce heat, which,...
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Page 48 - Various efforts have been made to define life. Bastian gives it as "an abstract name for those sets of attributes or force-manifestations of living beings which are usually spoken of as vital phenomena." M. Dumas says: "There is an eternal round in which death is quickened and life appears, but in which matter merely changes its place and form.
Page 47 - Boussingault subsequently wrote, " constitute the grand laboratory of organic chemistry. They are the agents which, with carbon, hydrogen, azote, water and oxide of ammonium, slowly form the most complex substances Animals assimilate or absorb the organic substances which plants have formed. They alter them by degrees ; they destroy or decompound them. New organic substances may arise in their tissues, in their vessels ; but these are always substances of greater simplicity, more akin to the elementary...
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Page 5 - from the loftiest point of view, and in connection with the physics of the globe, it would be imperative on us to say that, in so far as their truly organic elements are concerned, plants and animals are the offspring of the air.' It might be thought that plants derive the principal part of the ingredients with which they build up their own structures from the soil ; but the experiments of M. Boussingault have long since disproved this formerly favoured assumption. He found that peas sown in pure...
Page 7 - ... the cost of the atmosphere. From vegetables these substances pass readyformed into the bodies of herbivorous animals, which destroy one portion of them, and store up another in their tissues. From herbivorous animals they pass readyformed into the bodies of carnivorous animals, which destroy or lay them up, according to their wants. Finally, during the life of these animals, or after their death, the organic substances in question return to the atmosphere from whence they originally came, in...
Page 9 - ... themselves derived. They are, in fact, produced upon the grand scale by the action of those magnificent electric sparks that dart from the storm-cloud, and furrowing vast fields of air, engender in their course the nitrate of ammonia, which analysis discovers in the thunder-shower. As it is from the mouths of volcanoes, then, whose convulsions so often make the crust of our globe to tremble, that the principal food of plants, carbonic...