Part I.: Polyphase currents - Chapter I: Biographical and introductory -- Chapter II: A new system of alternating current motors and transformers -- Chapter III: The Tesla rotating magnetic field. -- Motors with closed conductors. -- Synchronizing motors. -- Rotating field transformers -- Chapter IV: Modifications and expansions of the Tesla polyphase systems -- Chapter V: Utilizing familiar types of generators of the continuouse current type -- Chapter VI: Method of obtaining desired speed of motor or generator -- Chapter VII: Regulator for rotary current motors -- Chapter VIII: Single circuit, self-starting synchronizing motors -- Chapter IX: Change from double current to single current motor -- Chapter X: Motor with "Current lag" artificially secured-- Chapter XI:Another method of transformation from a torque to a synchronizing motor -- Chapter XII:"Magnetic Lag" motor -- Chapter XIII: Method of obtaining difference of phase of magnetic shielding -- Chapter XIV:Type of Tesla single-phase motor -- Chapter XV: Motors with circuits of different resistance -- Chapter XVI: Motor with equal magnetic energies in field and armature -- Chapter XVII: Motors with coinciding maxima of magnetic effect on armature and field -- Chapter XVIII: Motor based on the difference of phase in the magnetization of the inner and outer parts of an iron core -- Chapter XIX: Another type of Tesla induction motor -- Chapter XX:Combinations of synchronizing motor and torque motor -- Chapter XXI:Motor with a condenser in the armature circuit -- Chapter XXII: Motor with condenser in one of the field circuits -- Chapter XXIII: Tesla polyphase transformer -- Chapter XXIV: A constant current transformer with magnetic shield begtween coils of primary and secondary - Part II.: The Tesla effects with high frequency and high potential currents -- Chapter XXV: Introductory- the scope of the Tesla lectures -- Chapter XXVI: The New York Lecture. Experiments with alternate currents of very high frequency, and their application to methods of artificial illumination, May 20, 1891 -- Chapter XXVII: The London Lecture -- Experiments with alternate currents of high potential and high frequency, February 3, 1892. -- Chapter XXIX: Tesla alternating current generators for high frequency -- Chapter XXX:Alternate current electrostatic induction apparatus -- Chapter XXXI: "Massage" with curents of high frequency -- Chapter XXXII: Electric discharge in vacuum tubes - Part III.Miscellaneous inventions and writings -- Chapter XXXIII:Method of obtaining direct from alternating currents-- Chapter XXXIV:Condensers with plates in oil -- Chapter XXXV: Electrolytic registering meter -- Chapter XXXVI:Thermo-magnetic motors and pyro-magnetic generators -- Chapter XXXVII:Anti-sparking dynamo brush and communicator -- Chapter XXXVIII:Auxillary brush regulation of direct current dynamos -- Chapter XXXIX:Improvement in Dynamo and motor construction -- Chapter XL: Tesla Direct Current Arc Lighting System -- Chapter XLI: Improvement in unipolar generators - Part IV.: Appendex: Early phase motors and the Tesla Oscillators -- Chapter XLII: Mr. Tesla's personal exhibit at the World's Fair -- Chapter XLIII: The Tesla mechanical and electrical oscillators.