Preface Chapter 1. Radiation of an electron in a uniform gravitational pull Chapter 2. Dynamics of an electron in a many dimensional space: a. Motion of two electrons in an eight dimensional space; b. On an electromagnetic field of an electron Chapter 3. Ware equations of an electron in a five dimensional form: a. Introduction; Five dimensional space, its origin and main applications; b. Derivation of the Ware equations; c. real solutions of the equations; d. Bibliography of the Five dimensional theory of relativity.

The thesis includes the following published papers: 1. On the dynamics of an electron. The Phil. Mag. p. 977 1928 2. On the electromagnetic field of an electron. The Phil. Mag. p. 425 1929 3. Hamilton's Principle and the Field equations of radiation. The Phil. Mag. p. 568 1930 4. Electromagnetic phenomena in a uniform gravitational field. Proc. Roy. Soc. E. p.71 1931 5. Ware equations of an electron in a real form. The Phil. Mag. p. 834 1932