I 175 j :il4 



Then dissolve one pound arid a half of alum in a ketlle with eight 

 buckets of water; pour this solution into a vat, fix your silk upon rods, 

 and work it well therein for two hours; then take it out, wring and dry 

 it. 



When the silk is completely dry, steep it in warm water, uhtil it 

 has become properly soaked. Then take it out, wring, and lay it by, 

 wet, for further use. 



This being done, pour into a vat five buckets of sharp vinegar, and 

 six pounds of Brazil wood, and let it stand for the space of forty-eight 

 hours: then take the liquor out of the vat, and pour it into a kettle; let 

 it boil for the space of ten minutes; then pour it through a sieve, into a 

 vat, and throw the parts remaining in the sieve into the kettle again ; 

 pour three buckets of water upon it, let it boil well for a quarter of an 

 hour, and add the liquor thereof to the other Brazil wood liquor in the 

 vat. 



Pour six ounces of the composition into this liquor of Brazil wood, 

 and stir it well; steep the silk previously soaked in warm water, in the 

 liquor, and work it well therein for the space of two hours. Examine, 

 at the expiration of this time, whether the liquor still contains any 

 coloring matter; if so, take it out, pour it into the kettle again, work 

 the silk another time therein, during which it must be kept moderate- 

 ly warm; then take it out, rinse it in running water, wring, and 

 hang it up to dry. By observing the whole of the above process you 

 will obtain a very handsome red. By using eight buckets of vinegar 

 instead of five, the color will be considerably improved; and by dis- 

 pensing with the composition altogether, the color will become darker. 



Lastly: If you desire to have this color of a darker and fiery hue, 

 add two pounds of Brazil wood, and one pound of composition, to the 

 above quantity, and proceed in the same way as above directed. 



TO COLOR SILK CITRON YELLOW WITH QUERCITRON. 



Take 2^ lbs. of alum, 



■? lb. of sugar of lead,* 



2 oz. of chalk, and 



3 lbs. of quercitron. 



Take a kettle with eight buckets of v/atcr, dissolve in it two and a 

 half pounds of alum; pour it into a vat, and let it become cold; add to 

 it a quarter of a pound of sugar of lead, and stir it well, then put into it 

 two ounces of chalk, stir it well, and continue the stirring, at proper in- 

 tervals, for the space of twelve hours, and set it by to settle. Pour 

 off the liquor into a vat, but be careful not to disturb the sediment at 

 the bottom: steep the silk in the liquor, and work it well therein for 

 the space of six hours; then take it out, wring and lay it by, wet, for 

 further use. 



After this, take a kettle with eight buckets of water, put into it 

 three pounds of quercitron bark, and let it boil for the space of three 



* Acetate of lead. 



