132 The Profitable Culture of Vegetables. 



in the cold frame, and although not so early as from hot-beds, 

 by costing less to produce they yield as good profits. 



The cold frame in construction is practically nothing more 

 than glazed lights placed over and enclosing the interior of a 

 bottomless box. This is all the French garden frame amounts 

 to, and where their use is not extensive the dimensions and 

 particulars given on pages 70 and 71 may be copied. Where, 

 however, a large number of lights are used it will be found 

 more economical to have instead of separate boxes two con- 

 tinuous rows of parallel boards, nailed to stakes driven into 

 the ground at convenient distances apart. The size of the 



Arrangement of Cold Frames. 



light regulates the width between the boards. The height of 

 the boards depends upon the crops to be grown in the frames, 

 lOin. to 12in. at the back and 7in. to 9in. at the front (according 

 to size of light) being suitable for most purposes. For tall- 

 growing crops, such as cauliflowers, the height of the boards 

 would have to be increased. The length is regulated by the 

 circumstances of the case, and the ends are enclosed by boards 

 cut to the required slope. Strips of wood Sin. wide and lin. 

 thick are fixed across from back to front board to receive the 

 edges of the lights where they meet. 



When used for forwarding purposes, the frames are fixed 

 in position over the growing plants, wherever they may be 

 standing, but when used for protecting plants through the 

 winter, or for growing early crops in the spring, they should be 



