Mcfw lson^ Thilos. Journal. Vo l.XH.FlXIVp.306. 



£r £rfttyu^M^j^r& <^wry /minors trAecfa, 





Fig. I. 



*30 



27 





1/ 



Ofc 



1%.2. 



*4(%fr*f68<xJe/ + 





Fig. 4. 



JF£. J. 



4 



3o or/Joiivm/ itr 



i 



f 



OA 



Mutlow Sc. AoAi ''•' 



