PLATE 9 



2. Station at Bogota, Colombia 



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I. Station at Leh, intiia. 



3. View from Station at Kizil Langar, India 



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4. Station Amazon 9, Brazil, showing Survey Launch 

 "El Iman." 



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3. Station at Rumeli Hissar, near Constantinople, showing 

 the Bosphorous. 



6. Magnetic Camp at Mamakhatun on Banks of the 

 Tuzia Su, Armenia. 



Typical Field Views by Observers in South America, India, and Asia Minor. 



