2£K) CULTIVATED VEGETABLES. 



cite a second fermentation, that would alter 

 the dye, spoil its colour, and make what is 

 called burnt indigo. 



To prevent these accidents, a close atten- 

 tion is paid to the least alteration the dye 

 undergoes, by taking up some of the liquor 

 in a glass from time to time. When it is 

 perceived that the blue particles collect by 

 separating from the rest of the liquor, they 

 leave off shaking the buckets, and pour lime- 

 water into it, and gently stir the whole. The 

 blue dregs precipitate to the bottom of the 

 tub, where they are left to settle till the wa- 

 ter is quite clear, when it is let off by taps 

 or holes one below the other, until nothing 

 remains at the bottom but the blue dregs, 

 which are then put into coarse linen bags : 

 these are hung up until the moisture is en- 

 tirely drained off. To complete the drying, 

 this muddy substance is worked upon boards 

 of some porous wood, with a wooden spatula, 

 and it is frequently exposed to the morning 

 and evening sun, though but for a short time 

 only, and then being put into boxes or frames, 

 is again exposed to the sun, in the same cau- 

 tious manner, until it is made fit for market. 



It is much to be regretted, that no sooner 

 has one man learnt to manufacture a useful 



