Distribution Department, break; electrolysis, electrolytic pittings on piece of pipe forced out of pipe No. 503 that burst on December 24, 1909 at Harvard Square (compare with No. 6456), Cambridge, Mass., Jan. 5, 1910

Distribution Department, break; electrolysis, electrolytic pittings on piece of pipe forced out of pipe No. 503 that burst on December 24, 1909 at Harvard Square (compare with No. 6456), Cambridge, Mass., Jan. 5, 1910

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