An essay of health and long life / By George Cheyne.

  • George Cheyne
Date:
1724
Catalogue details

Licence: Public Domain Mark

Credit: An essay of health and long life / By George Cheyne. Source: Wellcome Collection.

    66/292 page 12
    ftantly, and m\xAtmoJpheres> to be as heal¬ thy, found and Tweet as poffibly they can 5 and, for their own fakes, to have them remov’d till they are made fo, if they are otherwife. Nor fhall I add any preffing inftances, to avoid wet Rooms, damp Beds, and foul Linnen, or to re¬ move Ordure and Nufances 5 the Luxu¬ ry of England having run all thefe ra¬ ther into a Vice. 6. The Air is a Fluid, wherein Parts of all Kinds of Bodies fwim as in Wa¬ ter. But Air differs from Water in this, that th z fir ft is compreflible into a leffer Compafs, and fmaller Volume, like a Fleece of Wool, either by its own Weight, or any other Force, which Weight or Force being removed, the Air imme¬ diately recovers its former Bulk and Di- menfions again, whereas no Force what¬ ever can bring Water into narrower Bounds j that is, Air is extreamly ela- Jlick and fpringy, but Water is not at all To. Yet the Parts of Air would feem to be groffer than the Parts of Water: For Water >yill get through a Bladdery and may be forced through the Fores of Golds but Air will pafs through neither. By this its elaflick Force, the Air infi- nuatcs
    No text description is available for this image
    No text description is available for this image
    No text description is available for this image