Text. Image ( visual ) : microform A description of ventilators : whereby great quantities of fresh air may with ease be conveyed into mines, goals, hospitals, work-houses and ships, in exchange for their noxious air. ... Which was read before the Royal Society in May 1741 / Stephen Hales. -- New York, N.Y. : Readex Microprint , 1970. -- 2 microopaques : ill. ; 23 ×ばつ 15 cm. -- (Landmarks of science / ed. by Harold Hartley, Duane H. D. Roller). -- Title from header ; Reproduction of: London : W. Innys, [etc.], 1743. 165 p., index & plates ; "Courtesy of New York Public Library". -- (BB10721269) ; https://ci.nii.ac.jp/ncid/BB10721269 Author Heading(s): Hales, Stephen. -- Subject Heading(s): LCSH : Air -- Pollution ; LCSH : Air quality ; LCSH : Ventilation -- Early works to 1800

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