H. P. Boynton, “Latest Developments in Poured Joints for Vitrified Pipe Sewers,” Municipal Engineering, Volume LIV, No. 3 (March 1918), pp. 91-92.

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“Making Tight Joints in Vitrified Clay Sewer Lines,” Municipal Engineering, Volume LV, No. 1 (June 1918), pp. 253-254.

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