PLATJJ LVI 



Fig 1. 



Fig 2 



Fig. 3 



Fig 4<. 



■<■-■■. " V' 





■X Cr— 



-#**> 





#>.£ 



ify.A Fi^ i 



Fig.] 7. 



Fig.lS. 



A.Gawandel eL ht-h 



Hanhart imp 



