1886.] 



PUBLIC DOCUMENT — No. 33. 



77 



constituents of roots control, more thtm any other one, their 

 increase in solids. 



The roots which served for our analyses were raised under 

 similar conditions, upon a loamy soil, in a fair state of culti- 

 vation, for the purpose of comparing their composition. 



The amount of nitrogenous matter stated in the analyses 

 is, in every case, obtained by multiplying the nitrogen found 

 in the dried vegetable matter by 6.25. This course has been 

 adopted to enable a comparison with analyses of roots made 

 in previous years ; for this reason no nutritive ratio has been 

 stated. Root crops are known to contain, on an average, 

 from 35 to 45 per cent, of their nitrogen in other forms than 

 protein substances. 



Examination of Sugar Beets. 



ViLMORIN. 



