On the rot in sheep / By Edward Harrison.

  • Harrison, Edward, 1759-1838
Date:
1803
Catalogue details

Licence: Public Domain Mark

Credit: On the rot in sheep / By Edward Harrison. Source: Wellcome Collection.

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    f L 15 ] lous disorders. This dissimilarity cannot how¬ ever, as I conceive, be imputed to any modifica¬ tion in the contagious poison, but must arise from the atmosphere being more or less favorable to the diffusion and agency of variolous matter, upon the human constitution. This state of the air is peculiarly noticed by the American Phy¬ sicians, and seems of late years to have increased the malignity of the yellow fever. It does not appear by eudiomentrical experiments, that the atmosphere ever undergoes any change in its sensible qualities, and therefore I suspect that the noxious emanations are only diffused in the air where they remain imperceptible to the most delicate tests hitherto invented ; * and constitute no inconsiderable part of every mor¬ bid atmosphere. It is to this cause, that I at¬ tribute the sallow complexions, and debilitated / > constitutions, which so universally prevail among the inhabitants of some swampy dis- » tricts in the papal dominions. Formerly in the Hundreds of Essex, in some parts of Lincoln¬ shire, Cambridgeshire, &c. the people were ex- tremely pale and sickly, but since these dis¬ tricts have been better drained and consequently generate fewer miasmata, the peasantry are greatly improved in health, and the rot pre¬ vails less among their sheep. • Vid, Gay ton on Purifying the Atmosphere. y
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