BARTSCH 





13 



19 



25 





14 



20 



26 



' 



~ 



- 



21 



- 



27 





V* 



4 



~ 



: 



10 





16 



22 





28 



5 



* 



* 



11 



" 



W 



17 

 /^ 



23 



^ 

 32 33 34 



FIGS. 1-oG. Check series of Cerion hicnunm. 



PLATE 54 



-* 



12 



18 



24 



36 



