Another excursion was made to Ulàla Cove, distant about four nautical miles from our anchorage on the W. side of the island of Kamorta, on which occasion our Venetian gondola, specially constructed for similar expeditions, was pressed into the service. The entrance to the cove is about 3/4 of a mile in breadth, after which it expands in an easterly direction with varying width, at the same time sending off arms in every direction. The vegetation is exceedingly luxuriant and plentiful, and along the swampy shore consists mainly of mangrove bushes, which at most points make it almost impracticable to disembark, and impart to the entire bay a dreary, desolate appearance. At the few villages scattered along the shore, most of the natives had taken to flight. On this occasion, however, it was not child-like terror that had driven them away, but an evil conscience, for among the other inhabitants this bay enjoys the sad reputation of having on various occasions massacred the crews of small vessels, after having plundered them of everything. So strong is this feeling that the natives of the rest of the Nicobar group, according to their own report, refuse to have anything to do with this ferocious set, and could not by any means be induced to accompany us in their canoes as far as Ulàla Cove. The frigate lay five days in Nangkauri harbour, until the soundings and general survey of this large bay with its numerous branches had been completed, when, on the morning of the 11th March, she sailed, with a fresh breeze from N.W., through the western entrance, which is scarcely a hundred fathoms wide, by fourteen in depth, and is marked by two rocky pinnacles. Directly opposite lies the island of Katchal, thickly wooded to the water-edge, and stretching out long and low, without any marked elevation above sea-level. We now sailed in between these islands of Katchal and Kamorta in a northerly direction towards the islands of Teressa and Bampoka. On the W. side of Kamorta a number of villages were visible; on the N.W. we perceived at several spots natural meadows, while hereabouts the land gradually culminated into the highest point of the island,--a conical hill, rising not very far from the shore, almost entirely without trees, except where near the summit a number of bushes and shrubs nestled in a sort of hollow. Three days were now lost in unsuccessful attempts to make head-way against wind and tide, so that for four mortal days we were tossed about in full view of Bampoka, Teressa, and Chowra, never indeed above twenty miles distant, yet utterly unable to make any one of them. As the time at our disposal for visiting these was exhausted in consequence of this unexpected difficulty, we were, very much to our regret, compelled to forego the satisfaction of setting foot on either of these islands, which, especially Chowra, would have presented a rare opportunity of examining the effect upon tropical races of men of an excess of population.