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            | Pereskia aculeata in cactus house. 
 
 
 
 1906 |  | 
            
            
       
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            | Platanus occidentalis growing next to picket fence in the Arboretum. 
 
 
 
 1901 |  | 
            
            
       
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            | Populus monilifera growing along Tower Grove Avenue.  Tower Grove House visible above stone garden wall in the background. 
 
 
 
 1900 |  | 
            
            
       
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            | Parterre view with the Observatory and Tower Grove House in background.  View is to the south. 
 
 
 
 1900 |  | 
            
            
       
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            | Garden view with the Main Conservatory (1868-1916) in the background.  View is looking to the north. 
 
 
 
 1900 |  | 
            
            
       
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            | View of trees and shrubs in the Main Garden. 
 
 
 
 1900 |  | 
            
            
       
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            | View of lower pond between the Knolls. 
 
 
 
 1900 |  | 
            
            
       
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            | Garden bench beside a tree, with snow covering all. 
 
 
 
 1900 |  | 
            
            
       
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            | View showing part of the Parterre. 
 
 
 
 1900 |  | 
            
            
       
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            | Agave filifera filamentose growing in wooden tub in the Parterre.  Back side of Juno is in the background.  Color magic lantern slide. 
 
 
 
 1910 |  |