This course, the second of three courses in the medical laboratory technician field adapted from military curriculum materials for use in vocational and technical education, was designed as a refresher course for student self-study and evaluation. It is suitable for use by advanced students or beginning students participating in a supervised laboratory or on-the-job learning situation. The course is divided into three volumes containing student workbooks, readings, and tests. Volume 1 covers blood composition and functions, blood counts, ertrocytes, leukocytes, and coagulation. Volume 2 presents information concerning blood banking; this information includes immunohematology, blood group systems, transfusion of blood, and the operation of a blood center. The final volume discusses the principles of serology, the agglutination test, the fixation and precipitin test, and the serological test for syphilis. A glossary of technical terms used in the three volumes is printed at the back of volume 3. Each of the volumes contains chapters with objectives, text, review exercises, and answers to the exercises. A volume review exercise (without answers) is provided. (KC)