56 TOMATO CULTURE 



than the bed with the edge of the curtain firmly fas- 

 tened in its center. The center of the curtain is se- 

 cured to the central ridge of the bed by strips of lath. 

 When rolled up, the rollers are held in place by loops 

 of rope around their ends and when they are down 



FIG. l6 TRANSPLANTING TOMATOES UNDER CLOTH-COVERED 



FRAMES 

 (Photo by Prof. W. G. Johnson) 



they are held by similar loops to the notched tent-pins 

 driven into the ground or to wooden buttons fastened 

 to the sides and ends of the frame as shown in Fig. 16. 

 Cloth covers are sometimes dressed with oil, but 

 this is not to be recommended, though it is an advan- 

 tage to have them wet occasionally with a weak solu- 

 tion of copper sulphate or with sea water as a preser- 



