30 



SUPPLEMENT. 



rendered more efficient by a thin outer layer of stable manure. 

 To secure a uniform moderate temperature is the sole object 

 of these proceedings, and pits beginning to heat, are worked up 

 without delay. The pits must be located upon very dry land on 

 or near tlie beet fields, and in such a position that no accumu- 

 lation of water can injuriously affect them. 



To give some idea about the clianges which a good sugar-beet 

 undergoes in the pits even under quite favorable circumstances, 

 I insert the following statement of H. Rake. The same kind 

 of beet-roots contained — 



100.00 



Whenever the roots begin to rot the sugar is lessened ; the 

 loss due to the sprouting of the leaves may amount to two per 

 cent more than the preceding analysis states. 



Yield op Sugar-Beets. 

 The numerous varieties of beets differ widely in regard to 

 their annual yield, independent of the conditions of season, 

 upon the same soil and under the same treatment. Whilst 

 common mangels have l)een raised upon a suitable soil, in ex- 

 ceptional cases, at the rate of from ninety-four to one hundred 



