46 On the Steeping of IVooLy and the Influence 



Experiment II. 

 Nos. 2 and 3. Animals dead and diseased. 

 The colours almost always the same ; sometimes, how- 

 ever, No. 3 is less highly coloured. The difference between 

 these wools of dead and diseased animals and those of 

 heal thv sheep, though both of the same flock, is very re- 

 markable. 



Experiment III. 



No. 4. A Mixture of equal Parts of \, '2, and 3. 



The quantity of the altered wool being much greater in 

 this experiment, the colours I obtained with it nearly re- 

 semble those of 2 and 3, but never equal in beauty that of 

 No. 1. 



Experiment IV. 



No. 5. The savtc IVool as No. \, hut spun iviihout Oil, and 

 cleared of the Grease at a swgle Operation. 



The colour produced by this wool was more brilliant 

 than that of No. 1, but its tone was less high ; which de- 

 monstrates that in some operations the natural colouring 

 matter mu-^r be of some utility. Thus, in line crimsons, 

 and some ether colours, the silks ought to retain somewhat 

 of their rawness, for those that are white can never acquire 

 the same appearance. This observation perfectly coincides 

 with the experlmer.ts of Coulomb on the good effects in 

 dyeing of silk still charged with a portion of its colouring 

 principle. 



Experiment V. 



No. 6, Clippings cf IPool cf Plcnrdy. 



The deteriorated matter, which forms a part of this wool, 

 takes the colour so ill, that it is always clouded ; in all the 

 experiments it invariably produced a dull dirty colour, far 

 inferior to that of No. i . By the mixture of this damaged 

 wool, the dealers adulterate the quality of all the carded 

 ivools of France, which, as much preparation agrees very 

 ill with them, can be employed only in the manufacture of 

 the most ordinary stuffs. 



Experiment VI. 



No. "■ Clippings and Jp'ool (f the Merinos No. 1, in equal 



Farts. 



Notwithstanding the bad quality of the wool No. 6, this 

 mixture took the colour so well, that, in all mv experiments, 

 it was not much inferior to that of No. 1, though, ov/ing 

 to the clippings, its appearance was always dull. 



Experiment 



