On the 24th, in the morning, I was informed that a midshipman and a seaman, both belonging to the Discovery, were missing. Soon after we learnt from the natives, that they went away in a canoe the preceding evening, and were, at this time, at the other end of the island. As the midshipman was known to have expressed a desire to remain at these islands, it seemed pretty certain that he and his companion had gone off with this intention; and Captain Clerke set out in quest of them with two armed boats and a party of marines. His expedition proved fruitless, for he returned in the evening, without having got any certain intelligence where they were. From the conduct of the natives, Captain Clerke seemed to think that they intended to conceal the deserters; and, with that view, had amused him with false information the whole day, and directed him to search for them in places where they were not to be found. The Captain judged right; for the next morning we were told that our runaways were at Otaha. As these two were not the only persons in the ships who wished to end their days at these favourite islands, in order to put a stop to any further desertion, it was necessary to get them back at all events; and, that the natives might be convinced that I was in earnest, I resolved to go after them myself; having observed, from repeated instances, that they seldom offered to deceive me with false information. Accordingly, I set out the next morning with two armed boats, being accompanied by the chief himself. I proceeded as he directed, without stopping any where, till we came to the middle of the east side of Otaha. There we put ashore, and Oreo dispatched a man before us, with orders to seize the deserters, and keep them till we should arrive with the boats. But when we got to the place where we expected to find them, we were told that they had quitted this island, and gone over to Bolabola the day before. I did not think proper to follow them thither, but returned to the ships, fully determined, however, to have recourse to a measure which, I guessed, would oblige the natives to bring them back. In the night, Mr Bayly, Mr King, and myself, observed an immersion of Jupiter's third satellite. It happened, by the observation of Mr Bayly, at 2^h 37^m 54^s } Mr King, at 2 37 24 } in the morning. Myself, at 2 37 44 } Mr Bayly and Mr King observed with Dolland's three-and-a-half inch achromatic telescope, and with the greatest magnifying power. I observed with a two-feet Gregorian reflector, made by Bird.