|   
                     
                     1878
                     
                    
                     
                     XVIII. Nama rothrockii.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Nama rothrockii. Sprague del. U.S. Geogr
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XIX. Gilia.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     A. Gilia debilis. B. Gilia demissa. Spra
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XX. Convolvulus longipes.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Convolvulus longipes. W.H. Seaman del. U
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXI. Halenia rothrockii.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Halenia rothrockii. Sprague del. U.S. Ge
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXII. Fraxinus coriacea.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Fraxinus coriacea. Sprague del. U.S. Geo
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXIII. Abronia villosa.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Abronia villosa. W.H. Seaman del. U.S. G
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXIV. Atriplex wolfii.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Artiplex wolfii (i.e. Atriplex wolfii). 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXV. Urtica breweri.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Urtica breweri. Sprague del. U.S. Geogra
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXVI. Sisyrhinchium arizonicum.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Sisyrhinchium arizonicum. Sprague del. U
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXVII. Trisetum, Vilfa.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Figs. 1-3. Trisetum wolfii. Figs. 4-6. T
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXVIII. Poa wheeleri.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Poa wheeleri. W.H. Seaman del. U.S. Geog
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXIX. Festuca thurberi.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Festuca thurberi. W.H. Seaman del. U.S. 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     XXX. Notholaena hookeri.
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Notholaena hookeri. Sprague del. U.S. Ge
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     61D. Part Of South Western Colorado.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Part Of South Western Colorado, Atlas Sh
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     61C. Part Of Southwestern Colorado.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Part Of Southwestern Colorado, Atlas She
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     61C. Land Classification Map Of Part Of 
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Land Classification Map Of Part Of South
                     
                    | 
      
        |   
                     
                     1838
                     
                    
                     
                     Warren County, Pennsylvania, By Andrew H
                     
                    
                     
                     County Atlas
                     
                    
                     
                     Map of Warren County, Pennsylvania, By A
                     
                    | 
      
        |   
                     
                     1876
                     
                    
                     
                     Covers: Thirty Three Miles Around The Ci
                     
                    
                     
                     Pocket Map
                     
                    
                     
                     (Covers to) Map Of The Country Thirty Th
                     
                    | 
      
        |   
                     
                     1876
                     
                    
                     
                     Thirty Three Miles Around The City Of Ne
                     
                    
                     
                     Pocket Map
                     
                    
                     
                     Map Of The Country Thirty Three Miles Ar
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Map of Utah territory : representing the
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Map of Utah territory : representing the
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Map of the United States exhibiting the 
                     
                    
                     
                     Exploration Book
                     
                    
                     
                     Map of the United States exhibiting the 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     41B. North-Eastern Utah & South-Eastern 
                     
                    
                     
                     National Atlas
                     
                    
                     
                     North-Eastern Utah & South-Eastern Idaho
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     41B. Land Classification Map Of North-Ea
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Land Classification Map Of North-Eastern
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     1878. Progress Map Of The U.S. Geographi
                     
                    
                     
                     National Atlas
                     
                    
                     
                     1878 Progress Map Of The U.S. Geographic
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     1878. Progress Map Of The U.S. Geographi
                     
                    
                     
                     National Atlas
                     
                    
                     
                     1878, Progress Map Of The U.S. Geographi
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Louisiana.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Gray's New Map of Louisiana by Frank A. 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Spain and Portugal.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Gray's New Map of Spain and Portugal by 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Italy.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Gray's New Map of Italy by Frank A. Gray
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Australia.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Gray's New Map of Australia by Frank A. 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     Facsimile: Canada (portion).
                     
                    
                     
                     Historical Atlas
                     
                    
                     
                     (Facsimile) Map of the Dominion of Canad
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     69B. Parts Of South'n Colorado & North'n
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Parts Of South'n Colorado & North'n New 
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     69B. Economic Features Of Parts Of South
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Economic Features Of Parts Of South'n Co
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     73A. Part Of Southern California.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Part Of Southern California Atlas Sheet 
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Lexington, Virginia.
                     
                    
                     
                     World Atlas
                     
                    
                     
                     Gray's New Map of Lexington, Rockingham 
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Charlottesville,Virginia.
                     
                    
                     
                     World Atlas
                     
                    
                     
                     Gray's New Map of Charlottesville, Albem
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Harrisonburg, Virginia.
                     
                    
                     
                     World Atlas
                     
                    
                     
                     Gray's New Map of Harrisonburg, Rockingh
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Bridgewater, Virginia.
                     
                    
                     
                     World Atlas
                     
                    
                     
                     Gray's New Map of Bridgewater, Rockingha
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Text Page (1): Professional Directory of
                     
                    
                     
                     World Atlas
                     
                    
                     
                     (Text Page) The National Atlas. Professi
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Text Page (2-3): Professional Directory 
                     
                    
                     
                     World Atlas
                     
                    
                     
                     (Text Page) The National Atlas. Professi
                     
                    | 
      
        |   
                     
                     1877
                     
                    
                     
                     Text Page (4-5): Professional Directory 
                     
                    
                     
                     World Atlas
                     
                    
                     
                     (Text Page) The National Atlas. Professi
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     77D. Central New Mexico.
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Central New Mexico, Atlas-Sheet No. 77(D
                     
                    | 
      
        |   
                     
                     1878
                     
                    
                     
                     77D. Land Classification Map Of Part Of 
                     
                    
                     
                     National Atlas
                     
                    
                     
                     Land Classification Map Of Part Of Centr
                     
                    |