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" "It is hoped, that the Light given by these Researches, may be of use in skilful Hands, for regulating and adapting the due Proportions of the acid, and the oily Principles, to different Cases and Constitutions. This is the proper Province of the Physician, which I am no ways qualified to meddle in.
(September 17, 1677- January 4, 1761) was an English clergyman whose inventions, studies and experiments made major contributions to developments in botany, and in both plant and animal . He was the first to measure utilizing his "Hales Manometer", and also invented a to distill various "airs" i.e., gases. His other medical or health related inventions include a ventillation bellow to improve air quality in enclosed spaces, and surgical for the removal of s. He was a philanthropist and wrote a popular tract on alcoholic intemperance.
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When Tar-waters of different Degrees of Strength were put into Florence Flasks, with other inverted Flasks fixed on them, and all were placed in the same Vessel of hot Water; on breaking the upper Flasks, the volatile acid Spirit could very sensibly be tasted, especially that of the stronger Tar-water; which shows that these Waters are impregnated therewith: and which when distilled from Turpentine, Dr. Boerhaave in his Chemistry says, is the best vegetable Acid that is known.
About the Year 1675, William Walcot, Brother to Sir , obtained a Patent for making Sea-Water fresh: And the King, before the Grant of this Patent, had the curiosity to go and see Mr. Walcot do it, which was by distilling it in a very large Still; into the Still he put some Ingredient, which was to cure the distilled Water of any noxious Quality: But what it was, he kept a great secret. I suspect that the principal thing was only Distillation, because in all his printed Accounts of it, he purposely avoids the calling it a Still, but calls it a Machine or Engine, and Distilling he calls the working of the Machine, not Distilling.
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And Mr. Triewald further says, that in the Summer of the Year 1742, be bad sent one of his Engines, calculated for a Sixty Gun Man of War, to France; which being approved of by the Royal Academy of Sciences at Paris, the King of France has ordered all the Men of War to be furnished with the like Ventilators.