A manual of electricity, magnetism and meteorology (1844)
Lardner, Dionysius, 1793-1859, Walker, Charles Vincent, 1812-1882 · London Longman, Brown, Green & Longmans · leaf 453
ons madeunder their directions, simultaneously every five minutes,on August 17. 1S36, at UpsaL the Hague, Gottingen,Berlin, Leipsic, and Munich. The horizontal linesdefine intervals of two hours each, the lowest beingmidnight of August 16, the highest being midnight ofAugust 17- : the curved lines… … BOOK IV. MAGNETIC DECLINATION. 417 is a great difference in many cases, in the amount ofthe deviation at any given time, there is a very markedcoincidence in its direction, as is evident from thegeneral resemhlance to each other of the set of curves. (414.) Besides these comparatively regular…
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.
