Complex sentence: On the 25th the vessel was lying on her broadside full of water a total wreck the crew proceeded to unrig the vessel and at midnight left in the ketch "Dauntless" and arrived in Sydney at 4pm on the 26th.
Split into simpler sentences: On the 25th the vessel was lying on her broadside full of water, a total wreck. The crew proceeded to unrig the vessel and at midnight left in the ketch "Dauntless" and arrived in Sydney at 4pm on the 26th.