Dep I oymen t # = 2. 



O 



CO 



<u 

 cn 



CD 

 XJ 



(U 



L_ 



Z3 



-4-' 

 O 



0) 

 Q. 



12 24 36 48 60 72 

 Time from start (hours) 



84 96 



Fig. 6, continued 



336 



