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Start Over You searched for: Author Treasury Department Remove constraint Author: Treasury Department Publish Year Decade 1900 - 1909 Remove constraint Publish Year Decade: 1900 - 1909

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2943. Geodesy or measurement of the earth.

2946. Gravity.

2947. Gravity. Gravedad.

2948. Hydrography.

2949. Hydrography. Hidrografía.

2950. Leveling.