When scholarly, able Roswell Magill was Under Secretary of the U.S. Treasury, he performed many a service for taxpayers. This week Mr. Magill performed another one. He and the Committee on Postwar Tax Policy, which he chairmanned through 16 months of work, put out A Tax Program for a Solvent America (The Ronald Press Co.; $3), the most comprehensive yet readable of all recent tax studies. It is also, the committee hopes, what an "intelligent and realistic
Secretary of the Treasury" might present to Congress, and have a good chance of putting into effect in the first "normal" year, i.e.,...