130 Description of a new Discovtry in the Art of Dicing. 



tpeak neither English norTaheitan, but a jumble of both. They 

 speak of seeing two ships some years ago, which kept in tlie 

 offing, and did not come near the island, except Master Folger, 

 as they call him, and the two King's ships ; they have seen no 

 »hip till the American that brought away Jenny. Jenny say* 

 they would all like to come to Taheiti or Eimao. We were 

 thinking that they would be a great acquisition at Opunohu, 

 along-side of the sugar works, as they have been accustomed to 

 labour, for the Taheitans will not labour for any payment." 



XX. Description of the Count De la Boulaye-Marsili.ac'» 

 new Discovery in the Art of Dyeing. 



XT is well known that cloth dyed in the piece is never saturated 

 throughout with the colouring matter. Indeed such cloths may 

 be distinguished from those dyed in the wool, by examining their 

 edge when cut ; for their interior is always of a fainter tint than 

 the surfaces — sometimes almost white. If, to avoid this, the 

 cloth be made of wool dyed before spun, it is more expensive, 

 but becomes more agreeable to wear, never showing white edges. 



Some colours can only be given to cloth after it is manufac- 

 tured ; for example, cochineal scarlet, the beauty of which would 

 be impaired by carding, spinning, and fulling. Scarlet is there- 

 fore always dyed in the piece, and lial)le to exhibit white edges. 

 The discovery of the Count de la Boulaye-Marsillac, director 

 and professor in the school of the Gobelins, entirely remove* 

 this defect. 



His theory is, that the water with which the cloth is soaked 

 before immersion in the dye-vat, occupying already the interstice* 

 of the cloth, prohibits the entrance of the colouring liquid ; so 

 that the cloth, though strongly wrung to displace the water, is 

 able only to receive the colouring matter to a certain depth. His 

 aim then was to have the cloth so moistened as to be fit for the 

 process, and yet to have the water so completely removed from 

 the interior of the cloth as to permit the dye to enter; and this 

 he effects by making the moistened cloth pass through between 

 rollers placed within and at the bottom of the dye-vat; so that, 

 the web passing f-om one windlass through the dye-vat, and 

 being strongly compressed by the rollers in its passage to another 

 ^vindlass, all the remaining water is driven out into the colouring 

 liquid (and diluting it to that extent), and is replaced by the co- 

 louring liquid, so as to receive colour to its very centre. The 

 winding is continued backwards and forwards from one windlass 

 to the other, and through the rolling- press, till the dye is of suf- 

 ficient intensity. 



Cloths 



