Elektronen, oder, Die Natur und die Eigenschaften der negativen Elektrizität
A German edition of Oliver Lodge's lectures on electrons and the constitution of matter, translated by Georg Siebert and published by Quandt & Händel in Leipzig in 1907 for students and general readers of physics. The figures are fine line engravings of laboratory apparatus — vacuum and discharge tubes, electromagnet coils, adjustable stands and optical benches — drawn in outline with hatched sections and italic letter keys, usable as period diagram vocabulary or as isolated instrument silhouettes.














