Licence: Public Domain Mark
Credit: On the rot in sheep / By Edward Harrison. Source: Wellcome Collection.
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No text description is available for this image![i >7 ] considerably from each other, and therefore we cannot be surprised that the rot has been im¬ puted to them. For the preservation of health, it was then judged necessary to close the win¬ dows of lodging rooms, before sun-set to pre¬ vent the introduction of night air. Since it is believed that aqueous vapors ascend from the earth during the day, and fall again in the night, to refresh the ground and vegetables which had suffered by a hot sun ; the dew is admitted to be pure water freed from earthy impregnations, and to be sent for wise purposes. If the rot wire occasioned by the dew, it should appear equally on all lands; but since it is only to be found in certain places, and under peculiar circumstances, I think it cannot be attributed to this cause. 2ndly. By beating rains, I can easily believe that particles of the soil, or the gruff, as it is called, will be washed among the grass. In this way sheep swallow it with their food,* as they do on many other occasions ; but how the texture and fabric of the liver can be destroyed by such matters is to me quite incomprehensible. Soft and continued rains are much more dangerous h . % to sheep, than violent storms; and flat and low lands, where the water does not discharge itself freely, and remains some time upon them, are most liable to rot animals. 3rdly. In wet sultry weather, the grass grows c](https://iiif.wellcomecollection.org/image/b30795084_0017.jp2/full/800%2C/0/default.jpg)