[From the Sydney Monumj Htrukl, Oct. 21.] We have received the following ex traordinary account respecting; the loss of two vessels and rescue of the crews, from a correspondent. The latter is dated Apia, September 7th, and the particulars, strange as they may appear, are confirmed by other letters received by the brig- Scotsman : — " On the 23rd of March last, the brig Rona, commanded and owned by Cap tain W. N. Hayes, sailed from Hua lieine, Society Islands, bound to Cali fornia. At the same time sailed from the same port the brigantine Samoa (also owned by the same Captain Hayes), bound to the Navigator's Is lands and elsewhere. " The brig Rona, after leaving the Society group, experienced l'ght winds for ten days, when m latitude 7 de;.r. S. tell m with a heavy gale of wind from the S.E., which lasted for four days, after which the wind veered round to the E. and N.E , still blowing heavily. " On the 4th April found the ship making a great deal of water, which inci'eased on ihe sth, till the pumps could hardly keep her free. When m latitude 86 deg. N., finding it im possible lo fetch the Sandwich Islands, the wind being 1 dead on end, it was deemed advisable to abandon the voyage and run for Farm ing's Island, but, ow ing to the ship leaking so much, could not fetch up to the true position of that island from the point where it is marked m the charts, therefore stood for the island of Manihiki. '• The leak still increasing, it was found, on the Ist May, that the ship had six feet water m the hold, pumps constantly going, water gaining fast. "On the next morning*, May 2nd, ten feet of water m the main hatch j ship settling down forward. At this time the vessel was abandoned, the weather being still very bad, with heavy rain squalls. The people were divided between the long-boat, com manded by the captain, and the quarter boat, which was taken m tow. After being tossed about for twelve days, the whole company (twent3 r -one m number) landed on Reirsou's Island. 