OIL-CAKE. 239 



by means of that liquid mush, which has become 

 known and celebrated under the name of " Flemish 

 manure," and to which the solid excrements of ani- 

 mals are also added. Adulterations of oil-cake have 

 not yet, in all probability, been introduced into Ger- 

 many ; should they be suspected, the simplest method 

 of testing would consist in burning to ashes a cer- 

 tain quantity that had been previously weighed. If 

 earthy substances — for example, lime, loam, sand, 

 ashes, etc. — have been intermixed, they will, of 

 course, augment the quantity of ashes, inasmuch as 

 they are not volatilized by heat. 



