FELTING. 4£ 



The annexed cats exhibit microscopic views of the fibres 

 of wool from picklock samples of Merino and South Down 

 fleeces. The relative diiFerence of serrations cannot be 

 conveniently delineated in a plate : a marked difference, 

 however, will be observed in the construQtion of the lamellae. 



No. 1, a fibre of Merino* wool as a transparent object; 

 No. 2, the same, as opaque. No. 3, a fibre of South Down 

 'wool, transparent : No. 4, the same, opaque. 



MICnOSCOFIC VIEW OF WOOL. 



No.l. No. 2. No. 3. No. 4. 



Th6 following observations by Mr. Youatt, whose inde- , 

 fatigable zeal and diligence in the investigation of many 

 particulars embraced in the present chapter, entitles him' to 

 much honor, will conclude the subject : — 



" There can no longer be a doubt with regard to the 

 general outline of the woolly fibre. It consists of a cen- 

 tral stem or stalk, probably hollow, or at least porous, and 

 possessing -a semitranspalrency not found in the fibre of hair. 

 From this'central stalk there springs at different distances, in 

 different breeds of sheep, a circlet of leave-shaped projec- 



