But it is not always so even in the tropics, and the contrary, and not infrequent, experience, without going to extremes, is the squall of a moonless night. As the dense clouds rapidly advance from the horizon and blot out the stars, one is left in inky darkness broken only by the glimmer of the lamps in the binnacle. Soon the wind comes tearing down and whistles loudly in the rigging, while with lowered sail, the vessel seems to fly through the water--judging by the rolling wings of foam that stream from her shoulders and gleam weirdly in the green and red rays of the sidelights. Presently the rain falls in a stinging chilly torrent, killing the breeze and leaving the boat rolling uncomfortably on the surface; and when the furious downpour is over, and the night is quiet once more, all that remains to show the past disturbance is sodden canvas, stiffened cordage, and the uneasy heave of the wind-whipped sea. So the squall passes--generally leaving a calm behind it--having in a little space squandered enough unavailing breeze to have helped the vessel on her course for hours to come. At last, one evening, we saw Narkondam from the masthead, about sixty miles away; and next morning Barren Island had risen above the horizon. These two little islands, eastern outliers of the Andamans, and connecting links between the eruptive regions of Burma and Sumatra, are both of volcanic origin, though the former is now extinct. Barren Island, about two miles in diameter, is merely the crater of a volcano rising abruptly from the sea, which, a quarter of a mile from shore, is nearly everywhere 150 fathoms or more in depth. Approaching from the east, we caught a glimpse, while still some distance off, of the black tip of an eruptive cone, showing above the rim of the crater, which at a nearer view proved to be of igneous basalt, clothed on the outer slopes with a growth of creepers, bushes, and of trees 50 to 60 feet high, frequented by numbers of fruit pigeons. On the north-west side of the island the wall of the old crater has been broken down, and a large gap about a hundred yards wide at the base affords an easy means of access to the interior. It is through this opening that the best view of the cone is obtained from seawards. As we sailed past the gap that afternoon the scene was one of striking beauty. Against a background of bright blue sky the little island rose from a sea of lapis-lazuli, which ceaselessly dashed white breakers on the rocky shores. The steep brown slopes, part clothed in brilliant green, framed in the cone--a black and solid mass, round which a pair of eagles circled slowly. Fortunately for those vessels which may visit the island, there is one place off-shore where soundings can be obtained with the handline, and there we came to anchor in 15 fathoms, a little beach and clump of coconut palms bearing N.N.E., a quarter of a mile away.