Reproduced below is a corrected version of that portion of Page 13 of Bulletin III—Technical Practices, a part of the Report of the Correlating Committee on Cathodic Protection published in July, 1951 by the National Association of Corrosion Engineers, beginning with the first line of column 2 and continuing to the end of the first paragraph. Those who have copies of this report may wish to clip out the material below and paste it over the incorrect portion.

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