Note 2 — CHAPTER 1 “WHAT IS ELECTRICITY?”
Reading edition
Steinmetz, Dr. Charles P., “Four Lectures on Relativity and Space,” Pages 21-22, London and New York, 1923. See Lecture II, “Conclusions from the Relativity Theory,” Pages 12-45. See also, Campbell, Dr. Norman R., “Modern Electrical Theory. Supplementary Chapters: Relativity,” Cambridge University Press, 1923.