Pyrene

"In this connection I would like to call your atten- tion to the article 'Lost Monopolies of Names and. Things,' published by Mr. E. W. Leavenworth, o...
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"In this connection I would like to call your attention to the article 'Lost Monopolies of Names and Things,' published by Mr. E. W. Leavenworth, on pages 1006-8 in the September, 1937, issue of Industrial and Engineering Chemistry, which deals with such contingencies, and which you might want to read."