We collected several specimens of sulphur and lava, and also a quantity of what the natives call the hair of Pele.  Every bush around was covered with it.  It is produced from the lava when first thrown up, and borne along by the air till it is spun into fine filaments several inches in length.  It was of a dark olive colour, brittle, and semi-transparent.  In our descent of the mountain we entered long galleries, the walls and roof hung with stalactites of lava of various colours, the appearance being very beautiful.  They are formed by the lava hardening above, while it continues to flow away underneath--thus leaving a hollow in the centre.  We might have spent many days in wandering about that strange, wild region, but we had seen enough to talk about ever afterwards.  We got back safe to the station; and when there, we found that Mr Callard had resolved to remain some time on the island.  He begged us, consequently, to take back the schooner to Honolulu, with directions for her to return for him in a fortnight.  It seemed quite strange to us to be at sea again after the wonderful scenes we had witnessed, and Jerry declared that he was well content to find himself afloat with a whole skin on his body.  The wind came round to the north-east, and we had to stretch away to the westward to lay a course for Honolulu.  We were about thirty miles off the land when the wind fell light, and gradually a thick fog arose, in which we found ourselves completely shrouded.  We still stood on, keeping as good a look-out as we could through the mist, lest we should run foul of any other vessel--not that such an event was likely to happen just then in the Pacific.  When night, however, came on, the fog grew still thicker, and the darkness became so great that we literally could not see our hands held out at arm's-length before us.  Mr Brand had kept the middle watch, and then Jerry and I, with Ben Yool, went on deck, with some of the native crew, to take the morning watch.  We glided slowly on over the dark waters, the breeze falling gradually, till it was almost a calm.  Jerry and I were walking the deck together, talking of the strange sights we had lately seen, when, happening for a moment to be silent, a cry, or it might have been a shriek, struck my ears, as if wafted from a distance across the water.