— 261 — 

 Plingiie IV 



^^yO^^^<''^''J.s- 



Fiel 



_^^,cvvs^''a^i7',< 







Q oÇ 



o ':b cP -' 

 G 00 a o 2 



oo ooo/ 



1^\XXS Schli/, 



-^vocofcu^- 



Fi g- 3 



Fio 4 



-y^YOCOCCUs 



J.g.5 





Fiô 6 



Grossissement =1000 [) 



