58 '^Report: Bnt Js.'.-r,- 7A^V,9 



Plate IV". 



Tv^. 13. fej 





J^i^;^. 15 .(14Sj 



Fig. 14^. (157) 



Fxg. 16. ( 6Z) 



Fvff. 18. fZ3Zj 



HZu^tratinff the/ Report/ an/ the- J^croscopio Stnocture of die/ Older RocJos of 



