A manual of electricity, magnetism and meteorology (1844)
Lardner, Dionysius, 1793-1859, Walker, Charles Vincent, 1812-1882 · London Longman, Brown, Green & Longmans · leaf 266
the pale emerald;the brightness would diminish, the colours disappear,and all be extinguished, sometimes suddenly, andsometimes by slow degrees. After this disappearance,fragments of the bow would be reproduced, would con-tinue their upward movement, and approach the zenith ;the rays, by the effect… … of the bow would reach themagnetic zenith, or the pointto which the south pole of the dipping needle is directed.At that moment the rays would be seen in the directionof their feet. If they were coloured, they would appearas a large red band, through which the green tints of Q o 230 ATMOSPHERIC…
Atmospheric electricity · Electricity -- Early works to 1850 · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
