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by flopping and opening fuch vents repeatedly, no 

 part of the cargo could mifs of purification, and this 

 -perhaps may be the befl: mode of adminiflering it. 



Prevention is better than a cure! 



In a vefTel equipped with the apparatus defcribed, 

 the inattention mud be great, if the corn be fuffered 

 to fuflain any injury at all. By an early ufe of it, 

 perfpiration and damps will prefently be dried away ; 

 heating of courfe will be prevented; and even the 

 produftion of the pernicious grub alluded to: for 

 be the nidus of its eggs ever fo proteftive, their em- 

 brios will not vivify without moifture to fullain them. 

 Wherefore, it fliould feem that the corn-merchant 

 in future will have little to fear, fave the influx of 

 fea-water, and even this (if in fmall quantities) will, 

 by the frequent ufe of the ventilator, gradually dry 

 away. 



flV/ 



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