ENCOURAGING THE STUDY OF AND PROMOTING THE SCIENCE AND ART OF RADIOLOGY; PLANNING AND PROMOTING REFRESHER COURSES FOR TECHNICIANS TO IMPROVE THEIR LEARNING; FURNISHING LISTS TO PHYSICIANS OF X-RAY TECHNICIANS WHO HAVE BEEN CERTIFIED BY APPLICANT'S NATIONAL EXAMINING BOARD; AND DISSEMINATING INFORMATION TO ITS MEMBERS RELATING TO THE LATEST DEVELOPMENTS IN THE FIELD OF RADIOLOGY