The current technology and its applications in flow cytometry are presented in this comprehensive reference work. Described in explicit detail are the instrumentation and its components, and applications of the technology in cell biology, immunology, pharmacology, genetics, hematology and clinical medicine. Methods for data analysis, including both hardware and software, and explicit experimental techniques for making specific measurements are presented. Material is divided by topic into two volumes: Volume I covers instrumentation, genetics, and cell structure; Volume II contains material on cell function studies by flow cytometry. This reference is essential for both the novice and the experienced investigator using flow cytometry in research, and for students of cell biology, biomedical engineering, and medical technology.