Fig. 4. Cross section of a house used for lettuce in winter and cucumbers in spring. 



Figure 4 shows a similar house in which lettuce is grown in the 

 winter months and cucumbers in the spring. The plants in this 

 case are trained vertically. This method of training is one adopted 

 by the owner of a large house represented in table i number 12. 

 The oblique side is boarded, and rhubarb and other crops are raised 

 in the two small beds shown in the cross section. 



The variation existing in the arrangement of houses and the 

 economy with which they are constructed and operated are quite 

 marked. The following table makes this clear. 



Table 1. showing dimensions, cost, etc. of houses devoted to 

 cucumbers, arranged according to their ground area : 



