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A well-devised system of sanitary measures may ensure external cleanliness, may provide that the soil on which the streets of houses are built shall be relieved of all superfluous moisture, and that all animal and vegetable refuse shall be promptly removed, so that the air circulating through the streets, and floating from them into the houses of the inhabitants, shall not be laden with poisonous miasmata, the source of disease, suffering, and untimely death.
Dogs, for example, have been killed by being made to inhale the fumes of prussic acid for a few minutes. The lungs thus become a ready inlet to contagion, miasmata, and other poisonous influences diffused through the air we breathe.
It is very extraordinary to see barren savannahs loaded with miasmata. The distance, greater than 40 leagues, at which the light is observed, has led to the supposition that it might be owing to the effects of a thunderstorm, or of electrical explosions which might daily take place in a pass in the mountains. It is asserted that, on approaching the farol, the rolling of thunder is heard.
Then they sat down near one another, and formed a large semicircle in front of the fire. With lowered faces, and swinging one leg crossed over the other knee, they uttered deep sighs at intervals; each one was inordinately bored, and yet none would be the first to go. He also carried a large jar full of chlorine water, to keep off all miasmata.
It is a mistake to suppose that these miasmata were first occasioned by the neglect of cultivation, which was the result of the misgovernment in the last century of the Republic and under the Papacy. Their cause lies rather in the want of natural outlets for the water; and it operates now as it operated thousands of years ago.
The Eyeo people, as they were afterwards told, are unaccustomed to carry hammocks, and they ought to have proceeded on horseback, in fact, Lander did not hesitate to express himself in rather severe terms, in regard to the manner in which the early part of the expedition was conducted; for, had the plan been adopted of making use of horses for the conveyance of the baggage, and not have allowed themselves to be delayed by the difficulty of procuring human assistance; had the whole party pressed forward to Laboo, and there attempted to recruit their strength, it is highly probable that they would have altogether escaped the poisonous effects of the miasmata.
But if by telling you this, I mean that Hercules purified the stagnation of many streams from deadly miasmata, my story, however simple, is a true myth; only, as, if I leftit in that simplicity, you would probably look for nothing beyond, it will be wise in me to surprise your attention by adding some singular circumstance; for instance, that the water-snake had several heads, which revived as fast as they were killed, and which poisoned even the foot that trod upon them as they slept.
The frequency of gnats and mosquitos characterises unhealthy climates only so far as the development and multiplication of these insects depend on the same causes that give rise to miasmata.
It thus aids in maintaining the balance of life, and cleanses the swamps of miasmata, thus purifying the air we breathe. During its existence of three or four weeks above the waters, its whole life is a continued good to man. It hawks over pools and fields and through gardens, decimating swarms of mosquitoes, flies, gnats, and other baneful insects.
After the rising of your legislature, you may find time for that journey. But I should prefer to see you here immediately after your election, if there be time for your return before the session of the legislature. Your health must require this change. Here you may freeze out all your "miasmata" and surplus bile in ten days, and go to Columbia with nerves well strung and blood well purified.
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