z 



13, 

 19' 



i5 

 17 



17 



68N-h 1,4-3,-5,4- 7,4- 9, -H 11,-t- i3, — iS 



-4-33,4-31,— 29, 4-2 9,-4-25, 4- 23,4-21,— 19 



72N-i- d,— 5,— -7,4-11, — 13,4-17 

 -4- 35, —31,— 129, 4-25, — -23, 4- 19 



