On Light and Other High Frequency Phenomena

The Problem of Increasing Human Energy, with Special References to the Harnessing of the Sun’s Energy

Inventions, Researches And Writings Of Nikola Tesla

Electrical Oscillators

Concise Dictionary of Mathematics

The Theory and Practice of Gamesmanship

Vedic Mathematics

High Frequency Oscillators for Electro-Therapeutic and Other Purposes

Concise Dictionary Of Chemistry

Biological System: A Tutorial Study Guide

On Electricity