jLole ;3e JUd,, Xx 



axKovxJ^ 



Bull.Soc.Geol.de France 



3^Série,T. XVIII. PL. XII, 



(Scciuvce- 3icl6 Jiù-tv 1890] 



E. Jacquemm ad.îiat.del.etlith. 



Imp. Edouard Bry, Pans. 



