CRANBERRY GROWING 



11 



cannot be so graded with moderate expense should be used unless the 

 water supply is very ample. If the swamp is large and much out of level, 

 it is often best to divide it with dams into separate areas (Fig. 7C), each 

 nearly level, at different elevations according to the lay of the land. This 

 greatly reduces the water required for flooding. 



It should be remembered in building a bog that the deeper any cran- 

 berry flood is, the more it harms the vines. 



Fig. 9. Tools Used in Preparing a Bog. 

 A, Turf hook: B, Turf axe: C, Grading hoe. 



