BIBLIOGRAPHY 155 



140 Smith, George O. The United States Geological survey 



and its relation to the United States Coast and geo- 

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 6S- 



[Address delivered at Centennial exercises of the U. S. Coast 

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 the Coast and geodetic survey has been to the Geological sur- 

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141 1 The work of the U. S. Geological survey. Past 



and present work. . . . Plans and opportunities for 

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142 The work of the United States Geological sur- 

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143 Smith, W. S. Administration of the U. S. Geological 



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[Correspondence between the Director and former employee 

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144 The U. S. Geological survey. Science, Feb. 22, 1907, 



n.s. ¥.25:309-11. 



145 The United States Geological survey. Canadian Min- 



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Published also in the Journal of the Canadian mining 

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[Gives an outline of the methods of work employed by the 

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146 United States Geological survey at the Panama exposi- 



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147 Uses popular language on topographical maps. Mining 



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[Sheet just issued to be the forerunner of others in popular 



language] 



