HALES, STEPHEN. Philosophical Experiments: containing Useful and Necessary Instructions for such as undertake long Voyages at Sea. Shewing how Sea-Water may be made Fresh and Wholsome: And how Fresh-Water may be preserv'd Sweet. How Biscuit, Corn &c. may be secured from the Weevel, Meggots, and other Insects. And Flesh preserv'd in hot Climates, by Salting Animals whole... London, 1739. 8vo, calf, rebacked in style, rubbed at edges; a few pages loose. One engraved plate.