Observations on the nature and properties of fixible air : and on the salutary effects of the aqua salubris, in preserving health, and preventing diseases : to which are added, strictures on the present practice of physic, pointing out the causes which greatly obstruct the improvement of the healing art / By John Melvill.
- Melvill, John.
- Date:
- [1787]
Licence: Public Domain Mark
Credit: Observations on the nature and properties of fixible air : and on the salutary effects of the aqua salubris, in preserving health, and preventing diseases : to which are added, strictures on the present practice of physic, pointing out the causes which greatly obstruct the improvement of the healing art / By John Melvill. Source: Wellcome Collection.
Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.
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![t -61 ] . This elementary preferving principle, being extremely volatile, readily makes its efcape through the pores, even whe.ii they are fo much obllrufted as to prevent the tranfpira^ tion of groffer matter, which ought alfo to tranfpire; and leaves the faline, oily, inflam- matory, earthy, and aqueous particles to a6t upon each other, in proportion to their re- fpe£live attradiing, and repelling^ powers, which thereby form new and various combi- nations productive of thefe complaints * ; or, in- other words, whatever obftrudis the per- fpiration, whether changes of weather, expo^ fition to heats and colds, wet feet, damp fitu^ ations, thin clothing, or unwholefome indi- geftible food, when the ferriientive procefs in. digeftion goes on badly, and furnillies but little Fixible Air, all thefe may be confi- dered as the remote caufes, and the various new morbid combinations formed in the ab- * We have no where, fays an excellent phllofopher, more ftriking examples of the converfion of matter into 1 new forms, than in the bodies of animals : changes ef- ' fe£ted by a natural procefs, which art has in vain at- tempted to imitate or account for.'' Newman's Chymistry. fence](https://iiif.wellcomecollection.org/image/b21483188_0067.jp2/full/800%2C/0/default.jpg)
