Seven letters & an a brochure entitled "The Importance of the Retail Exemption in the Fair Trade Labor Standards Act (FLSA)." The corresp. is concerned with hearings to be held on H.R. 5846 and H.R. 4101, Supt. of the San Diego City Schools Ralph Dailard's statement on Federal Aid for school construction & San Diego Retail Associates Mgr. Harry W. Hartman's comments relating to employees in the retail-mercantile industry and commercial laundry operations.