p heels over, if they are fixed to northern polarity, and the lower southern polarity. if required by unlocking the eccentric and giving it When the ship heels over, the lower part of the quad- a slight turn until the plate is perfectly level, and * Abstract of paper read before tbe Fbllosopbical… … to the deck, underneath the cen- few drops. of peppermint oil, ter of the compass, to augment gives a red color, which becomes the correction of the heeling violet blue on heating. On di- error Jwhich is effected by the luting, it passes through green quadrantal correctors. to a blood-red…
Iron · Gas · Patents · Magnetic · Apparatus · Patented · Scientific American · Ship heels · Herr ritter · Magnetic coil · North point · Carbonic acid · Floor plans · Electric light · Soft iron · Heeling error
Internet Archive · Public domain (published before 1931). Free to use for anything.
