LIST OF ILLUSTRATIONS. 



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Frontispiece: The formal garden. 



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Tlie wild garden Facing p. 



Trizeuxis falcata 



Oncidiuni iridifolium .... 

 Cross-section of the Mississippi river 



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7 

 11 



19 

 127 



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" 258 



Plates 1-9 Following p. 33 



Plates 10-20 



Plates 21-28 



Plates 20-35 



272 

 287 



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