CALENDAR OF OPERATIONS 211 



be sown about the end of the month on hot-beds, and 

 amongst them thirty or thirty-six Cabbage Lettuces 

 (" Black Gotte ") may be planted under each light. 



Radishes are often sown in these lights after planting 

 the Lettuces. They grow quickly and are gathered 

 before they interfere with either the Lettuces or the 

 Cabbages. 



Spinach should be sown about the middle of the 

 month under lights. The " Flanders " variety will 

 resist the cold well. 



Ventilation. The cloches and lights under which 

 " Passion " Lettuces are grown must be ventilated 

 as freely as possible to prevent the leaves decaying. 



DECEMBER 



-Mean temperature of Soil at i ft. deep, 4i.i3. Air, 38.I4 

 (Paris 41). 



Lettuces. At end of month the beds which have 

 carried " Black Gotte " Lettuces are turned over, and 

 some fresh manure is added previous to making up 

 for another crop. 



The ground for " Passion " Lettuces in the open 

 should be deeply dug, and after levelling and raking 

 may be covered with a layer of old manure. The 

 Lettuces should be planted about the end of January. 



Cabbages. Seedlings that have not been pricked 

 out will be left in beds until February, but should be 

 protected against hard frosts with a little straw, litter, 

 or bracken when necessary. 



Carrots may be sown on all hot-beds in which Cos 

 Lettuces or Cabbage Lettuces are to be planted. 



Cloches. At this season one Cos Lettuce (grise 



