VENTILATORS. 235

Force of the Air which passes through theCorn by Ventilation. Though Ventilation ofCorn in Ships will always be useful, in orderto keep it sweet, and the freer from Weevcls,yet it will be most serviceable in time of War,when they often wait long for Convoys.

546. Qu. May it not be adviseable to de-stroy all the Rats and Weevels in aCorn-stiip,by strong Fumigation with burning Brim-stone, laid in Basins made in the Ballast, be-fore the Ship is loaded with Corn: And ifwhile the Ship is loading with Corn, a littleBrimstone is burnt from time to time, as itis filling, this will be a probable Means toprevent the Breeding of Weevels, and willgive no ill Taste to the Corn.

547. I am told by an experienced Person,that Ventilators would probably be very ser-viceable in the Cod-fish Ships, where theylose much Fish by the Closeness of the Hold,notwithstanding they are continually movingthe Fish to and fro.

548. Sir John Philips, of PiSlon Caftfe,in Pembrokejhire, informed me, that in theYear 1750, some Ships laden with Cheese,

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