fesr-.-^.. •- :- ■ 



:a' ^ 



Fig. 6. A small cage fan draws air 



through the pile for 21 days. 

 Temperatures of up to 82 C. 

 (180 F.) have been measured 

 in the piles. 



Fig. 7. After the 21 day compost- 

 ing period, the piles are 

 broken down and new piles 

 constructed. 





Fig. 8. The composted material is 



completely decomposed and is 

 safe for use. It is a stable 

 material, the odor of which 

 bears little indication of 

 its origin. 



Fig. 9. The compost has been very 

 useful in landscape plant- 

 ings and other beautifica- 

 tion projects throughout 

 Durham. 



