24 ON. THE CULTURE 



be necessary to bore the bed with a hedge-stake 

 or mop-stick, making five holes to a three-light 

 box ; that is, one under each hill, and two under 

 the bars : bore them straight rather better than 

 half way up the bed, so that when the second 

 back lining is applied, holes may be bored 

 exactly opposite to the others. This will cause 

 a free circulation of the heat from one lining to 

 the other, and prove not only of great service in 

 regulating the temperature of the bed, but of 

 equal advantage in draining off the surplus 

 water. Take care when you add a fresh lining, 

 to keep the holes open. 



As the linings draw the boxes down, they will 

 require rising with boards and bricks. In order 

 to accomplish this, it will be necessary to provide 

 some small pieces of board, rather larger than a 

 brick, placing one of each, with a brick, under 

 the corners of the boxes ; and, as the bed settles, 

 increase the number of bricks. When you 

 raise the boxes, stop up the bed with rotten 

 moist dung, arid close up the inside about two 

 or three inches above the bottom of the box. 



