248 



THE SUGAR BEET. 



through which the resulting gases could make their 

 escape ; but where was the new supply of fresh air to 

 come from ? The resulting consequences were as ex- 



Fig. 53. 



Lonoritudinal section. 



Horizontal section. 

 Silos permitting gases to make their escape only. 



plained a few lines above. The roots were thrown in 

 the silos without the previous precaution having been 

 taken, preventing the direct contact of the beets and 

 soil forming the bottom of the silos. The resulting 

 evaporation not only from the ground but also from 

 the beets was considerable. 



These silos had a capacity of ten tons, and were 

 separated from their neighbors by a wall, the thickness 

 of which was 0.25 m. (0.82 foot). 



A plan frequently adopted to make sure of good 

 drainage consists in placing the silos on a slant, the 

 water from rains, etc., flowing into a small gutter. (See 

 fig. 54.) The dimensions given to a silo of this de- 

 scription 2.00 m. (G.56 feet) for its largest horizontal 



