Thus, after a hard voyage of four months and a half, he sailed up the river Thames, beaten in his effort to find the North West passage, yet with the news of many lands which no Englishman had yet seen. His employers greeted him warmly and were sufficiently well pleased with his success to trust him with a second adventure, for he had been farther north than any navigator who had preceded him, and had opened the commerce of the whale fishery to his countrymen. He was also the re-discoverer of Spitzbergen, which had first been seen by one William Barentz, a Dutch navigator, in the year 1596. Spring had no sooner opened, in the year following, than Hudson commenced making his preparations for a second voyage. This time he was to endeavor to seek the passage for the East Indies by passing between Spitzbergen and Nova Zembla. Thus, with a crew of fifteen persons, and his son John, he set sail from London on the twenty-second day of April, heading north, where lay the region of ice and snow. At one time the vessel would meet large quantities of drift-wood driving by in a confused mass; then large numbers of whales and porpoises would be met with, and the sea would be covered with multitudes of birds. Then again the mariners would come across numbers of seals lying about upon cakes of ice, and polar bears would lumber away over the glistening ice-pack. Two of the sailors, also, said that they saw a mermaid close to the side of the ship, but a big wave came along and overturned her. As she went down into the surging brine they saw her tail, which was similar to the tail of a porpoise, and was speckled like a mackerel. After sighting land, and exploring numberless bays and harbors, Hudson finally reached a great sound, into which emptied a stream. The vessel was anchored, and five men were sent forward in a boat to explore this river, in order to see whether or not the water-course dipped to the south and led to a passage through to Asia. But the water became very shallow, as the explorers proceeded, so they came back and reported that the vessel could not venture farther upon its way. As the provisions were now getting somewhat low, Hudson decided to steer for England. This he did, entering the peaceful Thames, after an absence of about four months. He was not received with the same cordiality which had greeted him after his first voyage. His employers had grown discouraged by these two unsuccessful attempts to find a shorter route to Asia.