A 1919 article by Samuel S. Dale opposing compulsory adoption of the metric system in the United States and Britain. It defends the English units used in textile manufacturing, then documents a mail campaign run by the "World Trade Club" of San Francisco, secretly financed by a wealthy backer called "Mr. Z." The account is a dated chronology with investigators' reports, press releases and a bill in Congress, and it ends with a call for disclosure of the backers. A short correction about a silk ribbon weight calculation follows.