e fainter than those of the end of the tube has a wooden cap on which two brass termi- familiar with the excavation of the tunnels by the use of cof- nal screws are fixed, and these screws are connected with the original, because the next process adds to their intensity. fers,. will need no further… … implements, fossils, and bones and teeth, which rine tunnels, the cast-iron tubing to be laid in sections as the can scarcely be distinguished from the originals. work proceeds. Air is supplied to the coffer through the to be measured, the end of the tube which is subjected to es ee eee tube, B.…
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