219 [ 175 J 



To deepen this blue, or to change it to a dark bhic, proceed in the 

 following manner: boil a kettle with sixteen buckets of water, add 

 four pounds of logAvood, and boil it well for about three quarters of 

 an hour; then take out one half of the liquor, and run it through a 

 sieve into a vat; let the other half or eight buckets of the same remain 

 in the kettle for further use; put into the liquor in the vat, a quarter 

 of a pound of alum, which has previously been dissolved in some ves- 

 sel; stir the whole well, steep the light blue silk in it, and work it well 

 in the liquor a quarter of an hour; then talce it out, wring and keep it 

 wet for further use, and throw out the liquor as useless. 



Lastly: pour into another vat the remaining eight buckets of (he 

 logwood liquor left in the kettle, after having first run it through 

 a sieve; steep the silk in the liquor, and work it w^ell therein for the 

 space of half an hour; then take it out, rinse it in running water, 

 wring and dry it. By the above process, you will obtain a dark blue, 

 in every respect equal to any of the blues which have been colored 

 by means of the keep. 



The above blue is likewise applicable to the dying of any other 

 goods; and not alone in this respect is it of advantage, but it. like- 

 wise saves you the troulde and expense of preparing a keep for dying 

 a small quantity of silk to a dark blue; and if the risk of missing a 

 keep, and the consequent loss thereof be taken into consideration, the 

 above receipt is of considerable advantage to the dicr as well as to 

 the manufacturer; particularly as the smallest quantity may be colored 

 equal to the coloring of a keep, by reducing the ingredients in pro- 

 portion to the quantity of the silk which is to be died. 



Ji handsome Violet Blue, after the manner of the foregoing. 

 Take 1 oz. of indigo, 



3 lb. of oil of vitriol, 

 \ lb. of alum, 

 4 lbs. of logwood, and 

 1 lb. Guinea or red wood. 



The indigo must be dissolved in oil of vitriol, as directed in the 

 jbregoing receipt, and kept ready for use. 



Dissolve in a kettle, with eight buckets of water, a pound and one- 

 quarter of alum; then pour the solution into a vat, and work the silk 

 well therein for the space of one hour; after which time, take it out; 

 wring, and keep it in its wet state, for further use. 



Fill a vat with eight buckets of water, put the above-mentioned solu- 

 tion of indigo in it, stir the whole well, work the alum-dressed silk, 

 therein, for the space of half an hour; then take it out, rinse it in runnin<»' 

 water, wring it, and set it by, wet, for further use. 



Lastly:, take a kettle with eight buckets of water, put into it four 

 pounds of logwood, and one pound of Guinea or red wood, and boil 

 the whole well, for about three-quarters of an hour; then run the de- 

 coction through a sieve into a vat, steep the blue colored silk in it, and 

 work it well in the same for the space of half an hour; after which 

 take it out, rinse it in running water, wring and dry it. 



Note. — I deem it necessary to add to the Jiquor of the logwood and red wood, a 

 quarter of a pound of alum. 



