1. Waves in uniform, magnetoactive plasmas -- 2. Whistlers -- 3. The quasi-linear theory of plasma oscillations and instabilities -- 4. Some aspects of theoretical plasma physics in the United Kingdom -- 5. On the stability of hydromagnetic systems with dissipation -- 6. Hydromagnetic instabilities due to finite resistivity -- 7. Energy transfer in a dense plasma -- 8. Optimization of flowing-plasma and external-circuit interaction -- 9. Experiments on the upstream wake in magneto-fluid dynamics