"Magnetic declination" Quotes from Famous Books
... they both tend to limit the vortices in their extreme latitudes; but the planet Jupiter has an indirect influence, which is probably equal, if not greater, than the action of the moon, in changing the magnetic declination. ... — Outlines of a Mechanical Theory of Storms - Containing the True Law of Lunar Influence • T. Bassnett
... do is to get a true N and S meridian mark. This can be approximately obtained by a good compass, and allowance made for the magnetic declination at your own place. Secure a slab of stone or some other solid flat surface, level this and have it firmly fixed facing due south with a line drawn through the center and put the equatorial on the surface ... — The Boy Mechanic: Volume 1 - 700 Things For Boys To Do • Popular Mechanics |