. Annual Reports of the Department of the Interior 1905. MAP OF :NETADA and UTAH, SHOWING PROGRESS Ol TWENTY-SIXTH ANNUAL REPORT PL. XXI. OGEAPHIC SURVEYING AND PRIMARY CONTROL » WORK OF THE YEAR HYDROGRAPHIC BRANCH. 161 industrial purposes. The division of hydrology investi-gates the currents of water under ground, particularlythose reached by deep wells. It is studying the geologyof the earths surface in so far as it concerns the distri-bution and amount of underground water, especially thathaving industrial importance. The division of hydro-economics studies the qualities of water as affect


. Annual Reports of the Department of the Interior 1905. MAP OF :NETADA and UTAH, SHOWING PROGRESS Ol TWENTY-SIXTH ANNUAL REPORT PL. XXI. OGEAPHIC SURVEYING AND PRIMARY CONTROL » WORK OF THE YEAR HYDROGRAPHIC BRANCH. 161 industrial purposes. The division of hydrology investi-gates the currents of water under ground, particularlythose reached by deep wells. It is studying the geologyof the earths surface in so far as it concerns the distri-bution and amount of underground water, especially thathaving industrial importance. The division of hydro-economics studies the qualities of water as affecting itsindustrial and municipal uses. Cooperative arrangements for hydrographic work weremade with eight States. The State Survey Commissionof Maine allotted $3,500; the Forestry Commission ofNew Hampshire, $300; the State engineer and surveyorof New York, $1,500; the State of California, $10,000;the State of Oregon, $2,500; the State geologist of Mary-land a sum sufficient to pay all gage readers in that State,and the State engineers of Nevada and Nebraska each asum sufficient for the services of a hydrographer whodevoted his tim


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