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Afrika. 

 Union of South-Africa. 

 Geolog. Survey. 



Sheet 2. Pienaars River (New Series) Portions of Pre- 

 toria Rustenburg and Waterberg Districts m. 

 Supplement to the Explanation. 



12. Pilandsberg. Portion of Rustenburg District, 

 mit Erlauterungen. 



13. Olifants River. Portions of Lydenburg, Middel- 

 burg, and Zoutpansberg Districts, mit Er- 

 lauterungen. 



Australien. 

 Victoria. 



1. Bl. Murmuncee. 



2. Bl. Wacra. 



Amerika. 



Vereinigte Staaten von Nord-Amerika. 

 U. St. Geological Survey. 

 Geologie Atlas. 



Niagara, Barnesboro-Patton, Tallula-Springfield, Elli- 

 jay, Murphysboro-Herrin. 

 Topography: 1. Utah, 2. Colorado m (Lake County), 

 3. Pennsylvania-Maryland Gettysburg Battlefield and 

 vieinity, 4. Niagara Gorge. 



