CULTURE OF THE SUGAR BEET. 89 



The results of the chemical analyses of the ashes are as follows : 



Potash 



Soda 



Lime 



Magnesia 



Sulphuric acid 



Chlorine 



Phosphoric acid 



Silica 



Oxide of iron 



Manganese 



Total 



Deduction of oxygen for chlorine 



On the other hand, seeds of rich beets contain a higher proportion of 

 nitrogen than seeds of poorer beets, and at the same time small seeds 

 contain more nitrogen than large ones, as is evidenced by the following 

 results of examinations by Champion and Pellet : 



Yilmorin seed. 



Large seeds 



Small seeds 



SUGAB BEET. 



Average of the varieties : 

 Graytop, greentop, large 



seeds 



German acclimated, pink 



top, small seeds 



FORAGE BEETS. 



Ox-horn, German yellow, 

 large seeds 



Pink field, red glohe, small 

 seeds 



4.130 

 0. 546 



10.9 

 11. 



4. 745 12. 2 

 0.777 \ 11.2 



4.647 

 0.560 



12.5 

 11.4 



2.66 

 3.07 



2.46 

 2.80 



2.38 

 2.55 



tw eS-p 



s 5 5 



- - s 



8.6 

 21.5 



14.87 

 15.93 



14.9 

 13.1 



13.6 

 12.4 



«4 



JO 



i to 

 $ G 



These relations between the richness of the beet and the composition 

 and size of the seeds, furnish the bases of ready and valuable means of 

 selecting the good and separating them from the worthless. The method 

 recommended is to pass them over a screen with meshes of a given diam- 

 eter, which unfortunately has never been determined, or at least stated, 

 and to throw those which pass through in water or a solution of salt, 

 rejecting those which float. Those which sink combine the valuable 

 properties above described, of small size and high specific gravity. In 

 the processes of selection as applied to choice of beets for production of 

 seed, which really constitutes the production ot new races, the end 

 really to be attained is the ultimate development of a race, or of races, 



