Fi<r. 20 Splash-Dam. … Fiff. 21. LofTS in liooni. Clous Falls, New York. LOGGING. 21 In ease sueli efforts are unavailing, it is necessary to shoot thejam with dynamite. Another device resorted to where the supply ofwater is insufficient is the splash-dam. Fig. 30. The object is tomake the operator independent of…
Woodwork
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