During our stay at Sydney some important changes took place among the officers of the ship, the principal of which were the departure for England of Captain Wickham, who had never thoroughly recovered from the attack of dysentery he experienced on our first arrival at Swan River, and the promotion of the writer to the vacancy thus created. Lieutenants Emery and Eden also left for England; the former was succeeded by Lieutenant Graham Gore. This almost total change in the arrangements of the ship requiring some delay, and the season for passing through Torres Strait, moreover, not having commenced, it was the 3rd of June 1841, before the Beagle again rounded Breaksea Spit, having touched on the way for a meridian distance at Port Stephens.* (*Footnote. We ran out of Port Stephens before a westerly gale. After passing between Entrance Island and Soldier Point, we steered for Salamander Head, and then for Tomaree Summit, when it was over the centre of the first projection inside Nelson Head, which led over the south-west corner of the shoal patch lying abreast of Red Point in 4 fathoms. When Nelson Head just shut in Yacaba extreme, we steered for the former, and passing it hauled over North-East 1/2 East for the western part of Yacaba Head, keeping a white spot on the second point inside Nelson Head, just open of the latter, until the leading marks for running out (which I have before given in my former visit to Port Stephens) were on.) SINGULAR CORROBORY. Whilst at the latter place, I witnessed a corrobory presenting a peculiar feature. As soon as it was dark, a number of heaps of fuel scattered here and there were simultaneously ignited, and the whole surface of the green was speedily lighted up by the flames. When the illumination was complete, the men, painted with spots and lines of white commenced the dance, which consisted in running sideways or in file, stamping with great violence, and emitting an inharmonious grunt, gesticulating violently all the time, and brandishing and striking together their weapons. The peculiar feature in this corrobory, was the throwing of the kiley, or boomerang, lighted at one end; the remarkable flight and extraordinary convolutions of this weapon marked by a bright line of fire, had a singular and startling effect.