Introduction to Pulsed Field Gel Electrophoresis. PFGE Instrumentation. Preparation of DNA for Pulsed Field Analysis. Pouring Gels and Handling Samples. Restriction Enzyme Digestion of Large DNA Fragments in Agarose. Switch Intervals and Resolution in Pulsed Field Gels. Field Inversion Gel Electrophoresis (FIGE). Variables Which Affect Pulsed Field Gels. Southern Blot Analysis of Pulsed Field Gels. Special Applications. Trouble Shooting. Bibliography of Pulsed Field Gel References. Appendices. Chapter References.