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By ten Babcock's men were bracing the outer sheathing of the coffer-dam, strengthening the derrick-guys, tightening the anchor-lines, and clearing the working-platforms of sand, cement, and other damageable property. The course-masonry, fortunately, was above the water-line, but the coping was still unset and the rubble backing of much of the wall unfinished.
The pressure by that time had relaxed. The ship was making water rapidly aft, and the carpenter set to work to make a coffer-dam astern of the engines. All hands worked, watch and watch, throughout the night, pumping ship and helping the carpenter. By morning the leak was being kept in check.
Twenty of these turbines, which are made by the I. P. Morris Company of Philadelphia, from the designs of Messrs. Faesch and Piccard, will be required to utilize the full capacity of the tunnel. The company possesses a strip of land extending two miles along the shore; and in excavating the tunnel a coffer-dam was made with the extracted rock, to keep the river from flooding the works.
It was further necessary, after each tide’s work, to remove and carry ashore part of this coffer-dam; so that on the return of the workmen at ebb-tide much time was lost in readjusting the coffer-dam, and in pumping the water out of the foundation-pit.
To-day we applied the principle of the coffer-dam to the replacement of the copper around our delivery or blow-pipe, some three feet below water. The operation proved quite simple and easy of accomplishment. Getting ready for sea.
All hands were pumping at intervals and assisting the carpenter with the coffer-dam. The leak was being kept under fairly easily, but the outlook was bad. Heavy pressure- ridges were forming in all directions, and though the immediate pressure upon the ship was not severe, I realized that the respite would not be prolonged.
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