.aw^v + ijkww 



.j<- .!) 



J* .!iSi 



iilif: iiiistcrii/, 



i.^>^V\ii(l A 



.1 \\\N + >>>- 

 i-'i posterior into ;i<nsl:. ';- 



2,\NW 



-u«.us nucleus throiigLi eiiteriDje 



WS^ 



