An Enquiry Into the Origin and Intimate Nature of Malaria

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Renshaw, 1858 - 136 Seiten

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Seite 17 - Constantinople; that many cities of the East were left vacant; and that in several districts of Italy the harvest and the vintage withered on the ground. The triple scourge of war, pestilence, and famine afflicted the subjects of Justinian; and his reign is disgraced by a visible decrease of the human species, which has never been repaired in some of the fairest countries of the globe.'6 CHAPTER XLIV Idea of the Roman Jurisprudence.
Seite 15 - In a damp, hot, stagnating air, this African fever is generated from the putrefaction of animal substances, and especially from the swarms of locusts, not less destructive to mankind in their death than in their lives.
Seite 17 - ... the cold or temperate climates of the earth. Such was the universal corruption of the air, that the pestilence which burst forth in the fifteenth year of Justinian was not checked or alleviated by any difference of the seasons. In time its first malignity was abated and dispersed ; the disease alternately languished and revived ; but it was not till the end of a calamitous period of fifty-two years that mankind recovered their health, or thf air resumed its pure and salubrious quality.
Seite 73 - ... of equilibrium ? Experience in agriculture shows that the production of vegetables on a given surface increases with the supply of certain matters, originally parts of the soil which had been taken up from it by plants — the excrements of man and animals. These are nothing more than matters derived from vegetable food, which in the vital processes of animals, or after their death, assume again the form under which they originally existed, as parts of the soil.
Seite 74 - Can it be imagined that any country, however rich and fertile, with a flourishing commerce, which for centuries exports its produce in the shape of grain and cattle, will maintain its fertility, if the same commerce does not restore, in some form of manure, those elements which have been removed from the soil, and which cannot be replaced by the atmosphere? Must not the same fate await every such country which has actually befallen the once prolific soil of Virginia, now in many parts no longer able...
Seite 17 - No facts have been preserved to sustain an account, or even a conjecture, of the numbers that perished in this extraordinary mortality. I only find that, during three months, five, and at length ten, thousand persons died each day at Constantinople; that many cities of the East were left vacant; and that in several districts of Italy the harvest and the vintage withered on the ground.
Seite 75 - ... substitute for farm-yard manure that universal food of plants, its elements obtained from other and cheaper sources, retaining its full efficacy ; and this can only be done when we shall have learned, what as yet we know but imperfectly, how to give to an artificial mixture of the individual ingredients the mechanical form and chemical qualities essential to their reception and to their nutritive action on the plant; for without this form they cannot perfectly supply the place of farm-yard manure....
Seite 59 - ... of life for a new one. The same atom of carbon which, as a constituent of a muscular fibre in the heart of a man, assists to propel the blood through his frame, was perhaps a constituent of the heart of one of his ancestors ; and any atom of nitrogen in our brain, has perhaps been a part of the brain of an Egyptian or of a negro. As the intellect of the men of this generation draws the food required for its development and cultivation from the products of the intellectual activity of former times,...
Seite 21 - ... visible, in consequence of the innumerable dead locusts that floated on its surface, apparently drowned in their attempts to reach the reeds which grew along its shores. Except these much-wished-for reeds, they had devoured every other green thing. Their destruction on a former occasion was sudden and singular. All the full-grown insects were driven into the sea by a tempestuous north-west wind, and were afterwards cast upon the beach, where they formed a bank three or four feet high, and extending...
Seite 19 - ... precautions to which Europe is indebted for her safety were unknown to the government of Justinian. No restraints were imposed on the free and frequent intercourse of the Roman provinces; from Persia to France, the nations were mingled and infected by wars and emigrations; and the pestilential odour which lurks for years in a bale of cotton was imported, by the abuse of trade, into the most distant regions.

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