Methods of Control 



o o o o o 



E3>.-.5at3.... 



oooooooooooo2oooo*fc.goooo 



o Q"^ o 



H ^ 



u S? 

 o o, 



3 



O ;3 



Is 



cO 



3 G- 



a^agi : :i 

 a 



S oj c 



aaiaaaa 



O O (- o o 



t-i i^'^ t-i u 



fl a <u c a a.; 



•-^a-Sia 



,a ^ 



H •-. S a 



<a « ^ 4' a cc 00 a3.pTi,.S ..2 



alia-aaaaa-^g-^&l : .gs 



as 



fed) -PS 2 



^-£3 J3 B S 



