1. H. P. Furth (private communication).
2. The effects of a radial variation of resistivity on the attenuation of a hydromagnetic wave in a cylindrical plasma
3. L. C. Woods, Quart. J. Mech. Appl. Math. (to be published).
4. R. J. Tayler,Proceedings of the Conference on Plasma Physics and Controlled Nuclear Fusion Research, paper CN-10∕63 (1961).