PLATE 17 J?.W Sac, trans Lim : 



Tig 5 



1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 



1 1 1 II 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 



iiiiiiiiiiiniii immiiimiiimii 



fig 4 



