New York: D. Appleton and Company, 1897. B&W Plates. First Edition. Leather and marbled boards. 8vo, half leather over marbled boards, illustrated with B&W frontispiece of oscillatory discharges & a few B&W figures and plates, Index, top edges gilded [t.e.g.], 315 pages. John Trowbridge was Rumsford Professor of Science at..... More