CHEMICAL SELECTION OF MOTHEKS. 95 



scope. Great care is needed to have each numbered, 

 the number in question corresponding to that of the 

 beet from which the juice was obtained. 



Practical Working by the Keil and Dolle Rasping 

 Method. 



The general plan (Fig. 36) gives an excellent idea 

 of a well-organized laboratory, working by the Keil 



FIG. 36. Plan ot a beet-seleciiug laboratory. 



and Dolle rasping method. The beets are brought to 

 Table B, where they are weighed. Those roots within 



