300 



AUGUST. 



d.l a I < d oi } t ei f dt ] 



= 



S = 



3 S 

 ls 



fl 



v "2 O o 



3 5 rg JJ 



31, H 



= J s. 



I, Is 



S=H 



a 5 .S 



I o-a 



S 1> B 



u ^ a 



s a x 1 



- 



If 



