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A represents a section of ground planted with broccoli and cauliflower —i 6, broccoli 

 a a, cauliflower. 



B represents the ground after the cauliflower has been removed and the celery trenches 

 prepared for under-cropping, the broccoli stems being earthed up as a protection from 

 frost.— ccc, protected broccoli; n n n, ground level; d d, treuches for celery and 

 imder-cropping ; e e e, manure-bed ; //, drain-pipes covered over with rough materials, 

 and forming a connexion with the main drains. 



C represents the first crop of celerv earthed up after the whole of the undcr-crops have 

 been removed from the ground'.— A /i, the tirst celery crop; g tj g, the second crop, 

 planted on a bed of manure in the trenches formed by the operation of earthing up the 

 first crop. 



D represents the second crop, earthed up from the material on which the first crop had 

 been grown, and the third succession planted on a new be'l formed on the space formerly 

 occupied by tlie first crop.— i i i, the second crop ; k /;, the third crop, which will ulti- 

 mately be earthed from the material occupied by tlie second crop. 



E represents the ground trenched and tlioroughly mixed with the rich material so abundantly 

 used in the cultivation of the celery crop, the subsoil being broken up as low as the 

 drainage, but not mixed with the top soil.—/, top soil ; m, subsoil. 



