A treatise on ventilators : wherein an account is given of the happy effects of many trials that have been made of them, which has occasioned their being received with general approbation and applause on account of their utility in many ways, to the great benefit of mankind, viz. in refreshing the noxious air of ships, hospitals and mines, to the better preservation of the health and lives of multitudes ; in preserving the timbers of ships much the longer from decaying ; in easily sweetening stinking cask water and curing the ill taste of milk, from some food of cows ; in new methods of distilling plenty of good water at sea ; in refreshing the air and keeping up and regulating the warmth of melon and cucumber frames and hot green-houses ; and in several other useful improvements ... /

Main Author: Hales, Stephen, 1677-1761.
Format: Book
Language: English
Published: London : Printed for Richard Manby; and sold by J. Pridden, at the Prince's-Arms in Fleet-street, 1758
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Item Description: Signatures: v. 1: pi² B-H⁸ ; v. 2: pi B-Z⁸(-Z8)
In 2 parts ; paragraphs and plates numbered continuously ; pt. 2 has special title page, separate paging and register, with imprint: London : Printed for Richard Manby, 1758.
Part 1 originally published 1743 under title: A description of ventilators.
Part 2 has slightly variant title ; also published separately.
Includes indexes.
Physical Description: 2 v. in 1 (v [i.e. iv], 111, [1] p., V fold. leaves of plates ; [2], 346, [4] p. (last page blank)) : ill. ; 21 cm. (8vo)
Local Notes: With armorial bookplate of The Honble George Baillie, Esqr., one of the Lords of the Treasury.