Biographical and introductory -- A new system of alternating current motors and transformers -- The Tesla rotating magnetic field -- Synchronizing motors -- rotating field transformers -- Modifications and expansions of the Tesla polyphase systems -- Utilizing familiar types of generators of the continuous current type -- Method of obtaining desired speed of motor or generator -- Regulator for rotary current motors -- Single circuit, self-starting synchronizing motors -- Change from double current to single current motors -- Motor with "current Lag" artificially secured -- Another method of transformation from a torque to a synchronizing motor -- "Magnetic lag" motor -- Method of obtaining difference of phase by magnetic shielding -- Type of Tesla single-phase motor -- Motors with circuits of different resistance -- Motor with equal magnetic energies in field and armature -- Motors with coinciding maxima of magnetic effect in armature and field -- Motor based on the difference of phase in the magnetization of the inner and outer parts of a iron core -- Another type of Tesla induction motor -- Combinations of synchronizing motor and torque motor -- Motor with a condenser in the armature circuit -- Tesla polyphase transformer -- A constant current transformer with magnetic shield between coils of primary and secondary

The Tesla effects with high frequency and high potential currents. Introductory. The scope of the Tesla lectures -- The New York lecture. Experiments with alternate currents of very high frequency, and their application to methods of artificial illumination, May 20, 1891 -- The London lecutre. Experiments with alternate currents of high potential and high frequency, February 3, 1892 -- The Philadelphia and St. Louis lecture. On light and other high frequency phenomena, February and March, 1893 -- Tesla alternating current generators for high frequency -- Alternate current electrostatic induction appparatus -- "Massage" with currents of high frequency -- Electric discharge in vacuum tubes -- Micellaneous inventions and writings. Method of obtaining direct from alternating currents -- Condensers with plates in oil -- Electrolytic registering meter -- Thermo-magnetic motors and pyro-magnetic generators -- Anit-sparking dynamo brush and commutator -- Auxillary brush regulation of direct current dynamos -- Improvement in dynamo and motor construction -- Tesla direct current arc lighting system -- Improvement in unipolar generators -- Appendix: early phase motors and the tesla oscillators. Mr. Tesla's personal exhibit at the world's fair -- The Tesla mechanical and electrical oscillators.