98 SUGAR BEET SEED. 



by steam. The doing away with the tedious 

 details of weighing expedites matters. And the 

 rapid analyses of beets, before siloing for the win- 

 ter, demands that the daily analyses reach a maxi- 

 mum. After the physical selection on the field, the 

 roots are gradually brought to the laboratory and each 

 placed in a special compartment. The Laon laboratory 

 is divided into two parts, parallel to each other, there 

 being less confusion with this arrangement. There are 

 two series of shelving, each with 300 compartments, 

 15 rows vertically, and 20 horizontally; the sizes of 

 these, taken as a whole, are: Length, ten feet; width,, 

 nine inches; height, six feet; distance between com- 

 partments, five inches vertically, and six inches 

 horizontally. For each series there are two Hanriot 

 appliances, and one vertical sampler worked by steam, 

 which is sufficient for the entire laboratory. The 

 arrangement of the sampler is shown in Fig. 37. It 

 is capable of giving 70 vertical strokes per minute, but 

 this would be entirely too rapid for the laboratory 

 work, not more than 15 to 20 strokes per minute being 

 necessary. 



Great precaution is required in order to give the 

 beet the proper slant during sampling. It should be 

 so arranged, as previously explained, that the 

 perforations be made at one-fourth the length of the 

 beet, without the neck. It is desirable to keep a rub- 

 ber band beneath the beet on the table during sam- 

 pling. This precaution obviates mutilating the beet by 

 the passage of theknife. The cut sampleremains in place 

 and is removed by hand. The cylinder obtained from 

 the beet has a diameter of about 12 m. m. (^ inch), and 

 a length which varies from 60 to 80 m. m. (2 1-3 to 3^ 

 inches). The cylinders are placed in special frames, 

 as shown in the engraving, these frames having 20 

 divisions each. There are five of these frames in con- 

 stant use for each series of the laboratory; as 100 beets 



