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625 



•no wonder therefore, that perfons of both thefe qualifications preser 

 fhould be found in a ihlp's company. The fame cloth conflantly 



P 



without any chang 



mu 



ft 



very 



ally imbibe a great 



VATION 

 OF MARI 

 NERS. 



? ' 



part of the effluvia carried o^ by perfpiration, and being conflantly 



■ 



worn, the pores mu ft again imbibe the irnpure vapours; and as 

 the filthinefs in their external behaviour caufes them to poflpone 



their wafliing, many pores mufl by 'this negled: be flopt up, an 

 the infenfible perfpiration prevented. All which circumflances 



<;ontribute greatly towards accelerating the eifedls of the fcurvy. 



Let us now confider how far the aliments on board a iliip can 

 ^e made antifeptic in long voyages i for it can be no remedy 

 ■againft the fcurvy to give the .patients a fmali dofe of phyfic; 

 lince the greater part of . the food of a failor is either putrid or at 

 leaft in fuch a flate, that it mufl highly promote and accelerate the 

 ;putrefence of the whole habit : it becomes therefore abfolutely 

 "deceifary to provide a fubflance by wa^y of aliment, which will keep 



- 



a long while at fea without decaying, and which will yield in 

 quantity thofe particles, which are generally wanting in the putrid 



+ 



food. The ^ejh mufl be falted, and of courfe is, liable to lofe by 



- 



lying long in fait thofe particles, which when boiled down ,^ fir ft 

 yield a gelatinous fubilance,' and laftly a kind of glue, the only 



nutritive parts contained in all meat; this aliment is therefore one 

 of thofe which cannot be preferved in agood conditionr, be it ever 



4 L 



fo 



