Philosophical experiments; containing useful and necessary instructions for such and undertake long voyages at sea shewing how sea-water may be made ... to wich is added an account of several exp Paperback -

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1739 Excerpt: ...of frefli Air, which would promote the breeding of Infefts. But if by reafon of the too great clofenefs of the Hole in the Earth, it (hall by experience be found, that the great fmother of the Fume, extinguimes the burning Brimftone; then a lefs deep Hole may be made ufeof, on which a Cafk may be fet with both its Heads out j the Bread or Corn Cafk being fet on this, ar fuch a height from the burning Brimftoiv as to prevent the Bread or Corn, being fcor"! by it; for which purpofe about a Yart, be high enough: If need require, there m, be two or three Holes boared in the fides q F 4 the the headlds Under Cafk, or fome fpace left at the Bottom, in the Earth, to give vent enough to keep the Brimftone burning. 'Tis probable that by this means, Bifcuit, Corn, &c. may be long preferred from being worm-eaten. But in cafe it fhall by experience be found needfull to renew this Fumigation, efpecially in fome long Voyages; it may be done with great fafety on fhip-board in calm Weather, viz. by placing a Cafk on Deck with its upper Head out; in the bottom of which let there be near a Foot depth of Ballaft, preffed hard down, with a kind of hollow Bafin in its middle, wherein to lay the burning Brimftone. Not only Bread and Corn Cafks maybe thus fumed again, if need require: Butalfo the Bread in the Bread-Room, if inferred with Weevels or Worms, may by being thus fumed in Cafks, have all the Vermin deftroyed, which will conduce much to the preferving of the Bread, by leflening their number, tho' they cannot thus be wholly extirpated: Becaufe the Breadeijpm it felf cannot well be fumed at Sea, molf the Ship is full of People: Tho' it may aboutbe done, when in Harbour; by burnTV then fome Brimftone in it, on a thick of Ballaft; in a fhallow open Tub: which would ...