iii mea puiin the silk, and work it therein until it become of an even 

 color. If the liquor be not enough to fill the long trough (barque,) add 

 water, and before the bath is cold, so that there may be the same degree 

 of heat mentioned above. In general, all the long troughs or caldrons, in 

 which dying is to be efi'ected, should be full; the silk being plunged in. 

 till about two inches distance from their brims. Whilst this operation is 

 going on, weld is to be boiled a second time in a new water, and then 

 taken out at one end of the long trough, and placed on a shelving white 

 pine table, or else on the top of the trough. Then about one-half of 

 the bath is to be thrown out, and to be supplied with the second liquor 

 from the new bath of the plant, in the same quantity that has been 

 taken from the first, taking care to stir up the bath, in order to mix the 

 whole well. This new bath may be employed somewhat hotter than 

 the first; still, however, the heat must only be moderate, because, if it 

 were otherwise, we would destroy one part of the color which the silk 

 had already taken. 



Work in this new bath, as on the former occasion; and, during this 

 time, dissolve potash, in the proportion of about one pound for twentv 

 pounds of silk. For this purpose, put the potash into a small kettle. 

 then pour into it some of the second weld liquor boiling hot, stirring up 

 the potash. This little bath is to be left to settle, and when it is clear, 

 lift out a second time the silks, putting them on the shelving table, and 

 throw into the bath two or three ladles-full of the clearest part of the pot- 

 ash water. The bath is to be well stirred up, and the silks to be dip- 

 ped again, and worked* anew. After seven or eight workings, one of 

 the hanks is to be wrung upon the pin, in order to see whether the color 

 be full enough, and of a proper yellow. If it be not sufficiently so, add 

 again a little of the potash bath, and proceed as directed above, until 

 the silk receives the desired shade. 



To die a yellow approaching to that of Jonquille, at the time of 

 putting the potash into the bath, we must add also to it some annotto. 

 in proportion to the color required. 



The slight shades of yellow, such as pale lemon, or Canary bird 

 color, ought to be made on a very white ground; for this purpose^ 

 the silks are to be boiled with thirty pounds of soap for every hun- 

 dred weight of silk. If they be not sufficiently blued (azured) for 

 giving them these shades, some ladles-full are to be taken out of the 

 bath of boiled weld, and some mixed with clear water, with a small 

 portion of the liquor of the vat. The silks are then to be put into 

 this bath, and steeped and washed as usual; and, if it be perceived 

 that the shade is not deep enough, some of the weld liquor must be 

 added, and from the vat also, till the desired shade is obtained. 



For the deeper shades of lemon color, boil the weld the same way 

 as for the yellow, and add a certain quantity of it to clear water, in 

 proportion to the desired fulness. Put into it also some of the liquor 

 in the tub, if the shade require it: but the deep lemon colors may be 

 boiled in the usual way like the yellows. It must be noted that the 



• In the edition for the House of Representatives, these words were, improper!} 

 T)rinted, "wnshed" and "washes."— KniTOB 



