Part II of the second of four volumes in Research Report No. 7 of the Health Services Mobility Study (HSMS), this book is the remainder of Chapter 3, which contains 76 task descriptions covering most of the medical activities carried out by radiologic technologists. The steps of the task descriptions are presented in logical sequence in considerable detail by Code Number. (Part I of this volume contains Chapters 1, 2, and the first part of 3. Volume 4 is an index of all the tasks in the three volumes). These task descriptions are offered for use as instructional materials, as inputs to the design of career ladders, for the structuring of jobs, and as inputs to the development of performance evaluation instruments and proficiency tests. (HD)