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                     1874
                     
                    
                     
                     Storm centres US.
                     
                    
                     
                     Statistical Atlas
                     
                    
                     
                     U.S. Signal Service chart showing the fr
                     
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        |   
                     
                     1874
                     
                    
                     
                     Mean temperature US.
                     
                    
                     
                     Statistical Atlas
                     
                    
                     
                     U.S. Signal Service chart showing the me
                     
                    | 
      
        |   
                     
                     1874
                     
                    
                     
                     Barometer, air movement US.
                     
                    
                     
                     Statistical Atlas
                     
                    
                     
                     U.S. Signal Service chart, showing annua
                     
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