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ifputed; the well-known fafl: that it 

 'ce the fineft wool in Europe being a 

 of this circumflances but that foil 

 .iiinate alone are not fufEcient to overrule the 

 influence of all other circumftances, our own ex- 

 perience alfo too clearly proves. To be able to 

 judge how far nature afTifts us in this enterprize, and 

 in what refpedls it becomes neceflary to call in the 

 afTiftance of art^ the two following fadts ought to 

 be very particularly adverted to, 



I ft. Every filament of wool is greatly altered by the 

 heat or the cold that the animal producing that wool 

 is Jubje£fed to during the period of its growth y that 

 part of the wool being always coarfejl which is produced 

 in warm weather y and fineft in cold weather,'^ Hence 

 it neceflarily follows, that as wool continues to grow 

 at every feafon of the year, that part of the fila- 

 ment which grows during the funnmer muft be 

 coarfer than what grows during the winter feafon. 

 If, therefore, the difference between the heat of 

 fummer and the cold of winter be very great in any 

 place, it will be impofTible there to rear good wool 

 of a fine quality, becaufe, however fine that part of 

 it naay be, which grows in winter, that part of it 

 which is produced in fummer muft be very coarfe. 



• For proofs of this fa<ft, fee Obfervatlons on the means of exciting 

 a Spirit of National Induftrjr, Letter VI. 



And 



