US r-K.n mGICAL SURVEY OF T HE TERRITORIES. 



PLATE XXTv^ 



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I \ 





'^ 3 







.\>->^^-'-. 



r 







* cod ,;^ 







23 



i*^*^ 1 



fy 1^- c^; 





~7 



i.\< 





19 



il-^35- 



Jtl 



TK^jK Smclftir »■ S^" 



1 - 10 NEBELA CARJTSIATA 



11-12 1^ COLEARIS. 13 N HIPPOCREFTS 

 18-13 l^EBELA, 20-25. QUADRULA SYMMETRICA. 



14-17. N. B AREATA. 



