386 Mr. Henry's Confiderations on different Materials, 



The cotton is to be placed in the wringing 

 tub, about three gallons poured on it, and in 

 proportion as the folution is foaked up, more is 

 to be added, till about one half of it is em- 

 ployed. The cotton, having been thoroughly 

 worked in the alum liquor, is to be well wrung 

 and dried, and the portion which is wrung out, 

 is to be returned to the remainder in the pat>j 

 and ufed in the twelfth operation, which is per- 

 formed, exadlly in the fame manner as the 

 eleventh. After which the dried cotton is to be 

 well wafhed, by handfuls, in running water, 

 the workman holding in each hand, about 

 twenty ounces of cotton, for two minutes. 

 Each portion is then wrung, and feparated, 

 walhed and wrung again, and laid upon a coarfe 

 cloth. The whole is then carried up from the 

 river, wrung a third time and hung to dry. 

 The cotton will now be ready for the thirteenth 

 operation, in which the colouring fubftance is 

 applied to the cotton. 



The cotton is firft divided into four equal 

 parts, each of which is to be dyed feparately; 

 and thefe are fubdivided into fkains or parcels of 

 about a pound and quarter each. The copper 

 pan is then to be filled with water, within about 

 fix inches of the top ; and twenty fix pounds of 

 Smyrna, or rather of Cyprus madder, added to 

 it. As foon as the water becomes milk warin, 

 fourteen pounds of flieep's blood, as frefli as ic 



can 



