2.x 5. 



3.x 5 



Quart Journ.Geol. Soc .Vol.LXII,Pl.XL. 



1.X3 



11. 



4.x 5. 



5.x 5. 



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7.x 2 



Lchael del. el litb . Bale StLanielsson,!^ imp 



TRILOBITES FROM BOLIV 



