(123) 



- + d W ~ 





^ ^ fit 



I. 



III. II. I. 



III. II. I. 



III. II. I. 



III. II. I. 



h-fe 





ttt 



- ^ =. =:=:=, =:=:=: = = = 8 



PS — =l n — — ^^.— n — nS 



.•• • • • ••• • • "^ J*W- 



2 H H H n z: - H - H H H ft 



