"Magnetic variation" Quotes from Famous Books
 ... to the road; of the height of the chaparral bushes; also various other measurements. He gathered a rag here, a splinter there, and a pinch of earth yonder, inspected them profoundly, and preserved them. He took the "lay" of the place with a pocket-compass, allowing two seconds for magnetic variation. He took the time (Pacific) by his watch, correcting it for local time. He paced off the distance from the cabin site to the corpse, and corrected that for tidal differentiation. He took the altitude with a pocket-aneroid, and the temperature ...
— Innocents abroad • Mark Twain |
