This result has been, to a great extent, obtained by a deliberate use of propaganda in its broadest sense. It was obtained not only by modifying the opinion of the public, as the governments modified and marshaled the opinion of their publics during the war, but often by modifying the business concern itself. A cement company may work with road commissions gratuitously to maintain testing laboratories in order to ensure the best-quality roads to the public. A gas company maintains a free school of cookery.
