Fig.Z. 



FigJ. 



DJAGBAM IV^.— Sections of ArUher of Cochleario' OffioiivcUis 

 in/Earlq (FmJ) Jldiddle'fFicfZ) and/Jlfa6ure'(fiq 3/ stages 



<^1_ Point of Dehisce^uye' S Septum -partly aisoried/ 



J^ Fii-ro^^~vascuZar oimdle^ C^. Epiiler?nzs 



7h_ Endotlieoii^uny P— Earervc/u/rrtay 



p-PoIlerv. 



