Varictiis — Contijiuous Cropping. 137 



the last of April or the first of May, and will be fit for 

 cutting about the first of June. The price for this let- 

 tuce is about the same as for that grown in the houses. 

 This is either set in the field, about one foot apart, or 

 is set among cabbage, or in the onion field, where 

 space has been left for a later growth of celer}'. As 

 soon as the ground can be worked in the spring, a sow- 

 ing of the Black Seeded variety is made in the open 

 ground ; the rows being spaced one foot apart, and 



White Paris Cos. 



every other row being left out so that celery may be 

 set in later. When the plants are large enough, they 

 are thinned so as to stand one foot apart in the row. 



Sowings are made in this way every ten days until 

 about the twentieth of Auooist. These sowinsrs, taken 

 with those made under glass, as described, give con- 

 tinuously maturing crops of lettuce the year round. 



