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Rh part of the globe had only just become known, although British ships had been sailing to and from Australia and New Zealand for many years, taking out emigrants and bringing back wool. They usually called at the Cape of Good Hope both outward and homeward bound, this being the route recommended by the Admiralty. One of the most important services rendered by Lieutenant Maury was his careful research in this matter, which resulted in an entire revolution of both outward and homeward tracks. Instead of sailing near the Cape of Good Hope outward bound, he discovered that a ship would find stronger and more favorable winds from 600 to 800 miles to the westward, then continuing her course southward to 48°, she would fall in with the prevailing westerly gales and long rolling seas in which to run her easting down. It was in this region that the Australian clippers made their largest day's runs.

The homeward bound Admiralty track was entirely abandoned by Lieutenant Maury in favor of continuing in the brave west winds, as he called them, round Cape Horn, so that a voyage to Melbourne out and home encircled the globe. By the old routes, vessels were usually about 120 days each way, though sometimes considerably longer. By the tracks which Lieutenant Maury introduced, the outward and homeward voyages were made in about the same time that had formerly been consumed in a single passage, though of course the increased speed of the clipper ships contributed to this result.

The misery and suffering of passengers on board the old Australian emigrant ships before the days