APPENDIX. 



" diminidied by the ventilation : fo that more than double 

 " the ufual quantity of fuel was necefiary to produce the 

 *' fame effeO:. Befides this method by no means improved 

 " the tafte of the water. 



" The next who attempted any improvement was the 

 *' learned Dodtor Lind, of Portfmouth. He diftilled fea 

 " water without the addition of any ingredients ; but as 

 " the experiment he made was performed in a veffel con- 

 " taining only two quarts, with a glafs receiver, in his 

 " ftudy, nothing conclufive can be drawn from it for 

 " the ufe of fhipping. Indeed experiments of the like 

 " kind had been made by the chemifts in their labora- 

 " tories, for at leaft a century before. 



" In the year 1 765, Mr. Hoffman introduced a Still of a 

 new conftru6:ionj with ajecrei ingredient', but the large 

 fpace which this machine occupied, being feven feet 

 five inches by five feet eight inches, and, with its ap- 

 paratus, fix feet feven inches high, made it extremely 

 " inconvenient : at the fame time that, on account of its 

 '* {hallow form, the ufe of it was imprafticable during 

 ** any confiderable motion of the fliip. The water ob- 

 " tained, likewife, poffeffed all the difadvantages common 

 " to the preceding methods. 



" About 



207 



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