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                     1889
                     
                    
                     
                     Cave Valley, Nevada.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Plan and section of cave in Cave Valley,
                     
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                     1889
                     
                    
                     
                     Map, river and land parties, exploring G
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Map showing routes of the river and land
                     
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                     1877
                     
                    
                     
                     Astronomical observatory, Ogden, Utah.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Plan and elevation of the astronomical o
                     
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                     1877
                     
                    
                     
                     Topographical sketch, observatory site, 
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Topographical sketch showing observatory
                     
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                     1877
                     
                    
                     
                     Apparatus for determining absolute perso
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Apparatus for determining absolute perso
                     
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        |   
                     
                     1877
                     
                    
                     
                     Winnemucca, Ft. Fred Steele, Laramie, Gr
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Sketch of Winnemucca, Nevada showing pos
                     
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                     1877
                     
                    
                     
                     Pioche, Virginia City, Hughes, Colorado 
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Sketch of Pioche, Nevada showing positio
                     
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                     1877
                     
                    
                     
                     Beaver, Cheyenne, Fort Union, Georgetown
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Sketch of Beaver, Utah showing position 
                     
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