The SciencesAn Industry That Was Made-To-OrderBy A. E. Buchanan on May 1, 1931AdvertisementABOUT THE AUTHOR(S)Recent Articles by A. E. BuchananLying-Down Spectacles, Shortage of Coal-Tar Chemicals and MoreFrost Chaser, Constructing World's Largest-Bore Tunnel and more, January 1936An Ancient Egyptian Sundial, Laboratory Tests for Rugs and more