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 to lie exposed, the germs of the disease are communicated through the air. Indeed, when we consider how little heed we pay to these most elementary facts and principles, we can only wonder that we are not more often attacked by these terrible diseases.

During the prevalence of cholera, we should eat light food in moderation. We should breathe plenty of fresh air; and the water that we drink should always be thoroughly boiled, and filtered with a thick clean piece of cloth. The stools of the patient should be covered up with a thick layer of earth. Indeed, even in normal times, we should invariably cover up the stools with ashes or loose earth. If we do so, there would be much less. danger of the spread of disease. Even the lower animals like the cat take this precaution, but we are worse than they in this respect.

It should also be thoroughly impressed on the minds of persons suffering from contagious diseases, as well as those around them, that they should, under no circumstances, give way to panic, for fear always paralyses the nerves and increases the danger of fatality.