Some considerations on the different ways of removing confined and infectious air : and the means adopted, with remarks on the contagion, in Maidstone gaol / by Thomas Day. To which is added an appendix, containing some experiments on ventilating small sitting rooms, and preventing chimneys from smoking.

Day, Thomas, 1749 or 1750-1818

Date:: [1784]

Credit: Some considerations on the different ways of removing confined and infectious air : and the means adopted, with remarks on the contagion, in Maidstone gaol / by Thomas Day. To which is added an appendix, containing some experiments on ventilating small sitting rooms, and preventing chimneys from smoking. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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at Iaft become infectious and bring on a fever of the molt dangerous kind. This is proved by the experience of molt furgeons who have attended hofpitals or prifons. And the complaint having appeared in different places and at different times of the year, fhews that the caufe of it is generated immediately among perfons thus crowded, and not always conveyed from one place to another by infection, as fome other infectious difeafes are. From what has appeared among the fick of the prifon of this town, one is rather led to fuppofe that the virulence of the contagion is much more in- fluenced by the numbers thronged together, than by the feafon of the year; as during the fummer 1783, in the month of July the weather was very hot, and the air clofe and thick, when the gaol fe- ver appeared here in the prifon, yet it did not fpread with one fourth part of the rapidity that it did in January following, when the whole furface of the earth was covered with fnow; occafioned evidently by the greater number of prifoners in the winter than in the fummer. Although

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