Ibis. 1920. PI. XI, 



MAURETAN I A 



SOME CONSI0ERAT,0NS APPECTINC TME OISTWBIJTION OF QERTAIM OF 

 ITS PRESENT FORMS OF UIFE 



switwLv,^ oeuiixdA-s > 450O IS 6000 f«AU:'*^coLovurtta 



oArovc, 6000 H<-t 









UffPER HioeE.Ne Piettto-) 



'• >* 



:<.^" 



o 



\ ^ 





TTY & SEABORNE, LTD. 



