CHAPTER III.[1] JOHN HARRISON: INVENTOR OF THE MARINE CHRONOMETER.
"No man knows who invented the mariner's compass, or who first hollowed out a canoe from a log.

The power to observe accurately the sun, moon, and planets, so as to fix a vessel's actual position when far out of sight of land, enabling long voyages to be safely made; the marvellous improvements in ship-building, which shortened passages by sailing vessels, and vastly reduced freights even before steam gave an independent force to the carrier--each and all were done by small advances, which together contributed to the general movement of mankind....

Each owes all to the others.

The forgotten inventors live for ever in the usefulness of the work they have done and the progress they have striven for."-- H.

M.Hyndman.
One of the most extraordinary things connected with Applied Science is the method by which the Navigator is enabled to find the exact spot of sea on which his ship rides.