Miscellaneous papers
Collected physics papers by Heinrich Hertz, translated by D. E. Jones and G. A. Schott and published by Macmillan in London and New York in 1896 for physicists and students of electricity. The 23 line diagrams map fields and flows: nested closed loops with arrowheads, radiating curves around poles, stippled shading, and circles filled with parallel wavy lines.
