350 



PRINCIPLES OF AGRICULTURAL CHEMISTRY 



PERCENTAGE COMPOSITION OF ETHER EXTRACT 



Determination of Ether Extract. The substance is dried and 

 extracted with water-free ether for sixteen hours. The ether is 



C 



A 



Fig. 79. Fat extraction apparatus. 



then distilled off, and the fat, after having been dried in a water 

 oven, is weighed. A form of apparatus is represented in the 



