C 76 ■] 



that which has been called luch, being a i 

 mere Impofition. 



Amianthus, This is of the Clafs of the 

 Fibrari^ ; it is an opake brownilh Stone, 

 t:ompofed of fhort and abrupt Filaments, 

 flexile and elaftic, and eafily feparable into 

 Plates, or other irregular Pieces. There 

 are feveral Kinds of it \ and it is chiefly 

 found in Germmy^ France^ and Egypt ^ j 

 and one Kind often in Torkjliire. Thefe 

 kind of Stones have been often confound- 

 ed with the feveral fpecies of the AflDef- 

 tos, in confcquence of which, we have 

 loft the Art of fpinning and working the 

 Afl^ftos into incombuftable Cloth. 



Ajheftos^ the Cotton -ftone, is naturally | 

 of a white or Silver Colour, and conflfts 

 of fmall Fibres, of which may be made i 

 fine Threads, brittle, yet fomewhat trac- ' 

 table ; its Fibres are flexile and elaftic, 

 and compofed of fmgle and continuous 

 Filaments, therein diflxrring from the 

 Amianthus, the P'iiamcnts of which are^ 

 Hiort and abrupt : I'he Ancients had a 



Method 



