Though it was high summer in these southern latitudes, they experienced no genial warmth, only gales of wind, with an immense sea; they attained the latitude of 61.53 South, which, as Rogers remarks, was probably the furthest south reached at that time; and so they fought round the Horn, and before the end of January we find the entry: "This is an excellent climate." This was in latitude 36.36 South, and they were looking forward anxiously to sighting the island of Juan Fernandez. Many of the men had suffered greatly from cold and exposure, some were down with scurvy, and a rest in port, with fresh vegetables and sweet water, was very necessary. Juan Fernandez was not in those days accurately placed on the chart, and all eyes no doubt were turned to William Dampier to bring them there; which he did on January 31st, though they appear to have had a narrow escape of missing it, for when they sighted land it bore W.S.W., so that they had already somewhat overshot it. When we consider the very inadequate means which these men possessed for navigating thousands of leagues of trackless ocean, and making land which was very inefficiently charted, we can only marvel at their success. The quadrant of those days was a very rough affair, the compass was not perfect in construction, neither were its vagaries understood as they are at the present day--for the compass, emblem of faithfulness and constancy, is, alas! a most capricious and inconstant friend; only we understand it nowadays, and realise that it never--or hardly ever--points due north. Then chronometers, sufficiently reliable to give correct longitude, were not constructed until some sixty years later, when the earliest maker contrived to turn out, to his credit, a marvellously good one. This was John Harrison, and very scurvily he was treated by the authorities, only receiving the full reward which was offered upon the intervention of King George III. on his behalf. Well, here was Juan Fernandez, and very welcome was the sight of the high land, some five-and-twenty miles distant; but they were becalmed, and got but little nearer for twenty-four hours. Next day, in the afternoon, Rogers consented, rather against his better judgment, to Dover taking a boat in, the land being then at least twelve miles distant. At dark, a bright light was observed on shore, and the boat returned at 2 a.m., Dover having been afraid to land, not knowing what the light could mean. The general idea was that there were French ships at anchor, and all was prepared for action: "We must either fight 'em or want water, etc." These desperate measures were not, however, necessary; sailing along the land the following day, the two bays, which afford good anchorage, were found to be empty. The yawl was sent in at noon, and after some hours the pinnace was despatched to see what had become of her; for it was feared that the Spaniards might be in possession.