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Quite a number of boxes of flour, etc., had been stowed in a cabin in the hold, and these we had been unable to get out before we left the ship. Having, therefore, determined as nearly as possible that portion of the deck immediately above these cases, we proceeded to cut a hole with large ice-chisels through the 3-in. planking of which it was formed.
In order to secure a proper bedding into the sand foundation, a 12-in. lip was allowed to project all around the caisson below the bottom. In the bottom there was cast a 3-in. hole, and this was closed by a plug while the lower section was being towed into place. The question of the effect of sea water on the concrete was given much thought.
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