Photo: Soil Conservation and Rivers Control Council (D. N. Bircham) Accurate and detailed information about quantity and rate of flow of water is required before any water-engineering works are begun. To the right of the bridge is a structure housing a recorder that makes a continuous graph of the changes in the height of the river. (Rakaia Gorge.)
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Bibliographic details
Forest and Bird, Issue 148, 1 May 1963, Page 11
Word Count
58Photo: Soil Conservation and Rivers Control Council (D. N. Bircham) Accurate and detailed information about quantity and rate of flow of water is required before any water-engineering works are begun. To the right of the bridge is a structure housing a recorder that makes a continuous graph of the changes in the height of the river. (Rakaia Gorge.) Forest and Bird, Issue 148, 1 May 1963, Page 11
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