[ 72 ] 



8. It is a common opinion, that large quanr 

 tides of remnants and rags of all kinds of fear? 

 let cloth, are yearly carried from England tq 

 China, and that the Chinefe extract from them 

 their fine red pigments. If this be true, what 

 methods are employed to extraft the color ? 



9. It has been obferved that analogous fub- 

 ftances are moft proper for dying homogenous 

 bodies (/) ; thus animal fubftances are beft for 

 dying wool and filk, becaufe wool and filk are 

 ariimai fubftances. A blue dye, made of woad 

 (Ifatis of Linnaeus) is found to be full of infects. 

 Is it not the fame cafe with indigo ? Are not 

 all the lafting dyes made from animal fubftances, 

 Oi of fuch as contain numerous infects ? 



10. The manner in which the beft indigo is 

 manufactured in the interior parts of Indoftan, 

 and the plant from which it is made. Is it from 

 the Indigofera or the Anil I Are there any rules 

 to afcertain when the plant has foaked fufficient- 

 ly, and how long it ought to be beaten ? 



11. Is there any linnen made of flax or 

 hemp, or what other fubftances are fpun and 

 wove in India befides cotton ? What ufe is made 

 of the yellow or brown cotton taken from the 

 Bombax ? Is it manufactured for apparel, and 

 appropriated for a certain order of men, as priefts 

 or Bramins ? 



12. Defcriptions and drawings of the inftru- 

 ments and machines employed by the Chinefe 

 and Indians to clean the cotton from the feeds. 



13. Is only European zafFer from cobalt 

 ufed by the Chinefe for painting their porcelain 



(/) Vid. hiftoire de Pacademie, an. 1768. art. 11. 



blue. 



