10 



ANALYSES OF SUGAR BEETS, 1905 TO 1910. 



wagon is used, a bushel basket is placed on the bin in the path of the 

 falling beets and withdrawn after the load is dumped. The beets in 

 the basket constitute the analytical sample. If an ordinary wagon is 

 used a bushel basket full of the beets is forked out during the unloading. 

 In case the sample is taken directly from the cars, three or more sam- 

 ples should be selected from different portions of the car as it is being 

 unloaded in the same manner as from the ordinary wagon. 



LABORATORY SAMPLING AND PULPING. 



The sampling of beets in the laboratory is a very important matter, 



as for the final analysis only a very small 

 portion is used. The samples offered for 

 analysis are composed of from 10 to 100 

 beets, and in an ordinary laboratory it is 

 practically impossible to pulp all of the 

 larger sample ; therefore, one must resort 

 to removing a section from each beet and 

 pulping this. The removal of the right sec- 

 tion is a difficult matter, since the sugar 

 is not evenly distributed throughout the 

 beet. Many persons have studied the lo- 

 calization of the sugar content of the beet. 

 Prominent among them are Violette, 

 Wiesner, De Vries, and Marek. 1 The latter 

 went into the subject quite thoroughly in 

 1882. Proskowetz a number of years later 

 worked out the localization of the sugar 

 content in the beet as follows: By divid- 

 ing a beet into four or five equal horizontal 



sections, as is shown in figure 1 , he obtained the following percentages 



of sugar in the various portions: 



Percentages of sugar in horizontal sections of the beet. 



FIG. 1. Horizontal sectioning of beets. 



i Only four sections made. 



From this it is shown that the bulged section (Aj) has the highest 

 percentage of sugar. Other observers by dividing the beet into 

 more and smaller sections obtained the same result, namely, that 

 the highest sugar content is located in the region of the point of 



1 Within the last few months Floderer and Herke have reviewed the previous work on this subject and 

 have also added a large amount of careful experimental work. They come to practically the same con- 

 clusions as are here given. Osterr.-Ung. Zts. Zuckerind. Land., 1911, 40: 385. 



