Business: Friday

By doctors and pharmacists drug manufacturers are grouped under two categories —proprietary and "ethical," the distinction being that the former make medicines which are restricted from general manufacture by patent or copyright. Last week in Chicago a drug firm of each type made news through stock changes.

¶Abbott Laboratories, one of the "Big Four" makers of ''ethical" drugs,* began around the turn of the century when Dr. Wallace C. Abbott of Ravenswood started concocting his own alkaloid compounds in his kitchen because he was dissatisfied with those commercially available. In 1904 Dr. Alfred...

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