Heininger, Sylvan B. No. 7240, in United States Court of Appeals for District of Columbia, Apr. term, 1938, James A. Farley, Post master General, v. Sylvan B. Heininger, doing business as Dr. S. B. Heininger, D. D. S., and Sylvan Dental Laboratory [appeal from District Court of United States for District of Columbia]; brief on behalf of appellant.