A certain amount of public spending is necessary to perform essential government functions. A certain amount of public works—of streets and roads and bridges and tunnels, of armories and navy yards, of buildings to house legislatures, police and fire departments—is necessary to supply essential public services. With such public works, necessary for their own sake, and defended on that ground alone, I am not here concerned. I am here concerned with public works considered as a means of “providing employment” or of adding wealth to the community that it would not otherwise have had.