"Electric Generators or Dynamos are machines whereby by utilizing the principle of magnetic induction (Art. 416), mechanical energy may be converted into electrical energy (Art. 179). They are sometimes referred to as "electricity generators."" - Art. 509, Principles of Electric Generators, Section 29. Воспроизведено в оригинальной авторской орфографии издания 1917 года (издательство "Hill Publishing Co., Ltd.").