Yolk 



seen, and the residue of distillery from molasses, 

 which gives 35 per cent, carbonate, 17 per cent, 

 chlorure, and 6 per cent, sulphate of potash. These 

 generally contain a little cyanure and are therefore 

 dangerous to use, cyanure being a violent poison 

 both for plants and animals. Carbonate of potash 

 is most frequently given to plants in the form of 

 wood ashes. This contains from 10 to 30 per cent, 

 potash, and along with the carbonate of potash a 

 little sulphate is also found. 



Potash Manure Salt. 



Under this name are sold more or less impure 

 chlorures of potash, to which are added crude 

 Stassfurt salts. 



The title only serves to hide the inferior product, 

 in which the potash is generally fixed at too high a 

 price, and which often contains a harmful chlorure of 

 magnesia. 



There are also double sulphates of potash, and 

 of magnesia, which generally contain only about 

 27 per cent, potash. These are often adulterated 

 too. 



These preparations do not usually deserve the 

 attention given to them. 



Yolk. 



This is the deposit caused by perspiration which 

 is found on sheep's wool. It is soluble in water. 

 The raw wool contains about 4 per cent, potash, 

 so that the water in which sheep are washed before 

 shearing, or that m which the wool is washed after 

 shearing, ought to be put on the land. 



81 G 



