Ch. 1. How it all got started -- Ch. 2. Southern blotting I: electrophoresis of DNA -- Ch. 3. Southern blotting II: performing the blot -- Ch. 4. Electrophoresis of RNA and northern blotting -- Ch. 5. Dot and slot blotting -- Ch. 6. Plaque and colony screening -- Ch. 7. Filters and membranes