At three o'clock the tide began to ebb and the boat-keeper awakened us to re-embark on our return. On looking about we were surprised to find that the tide had reached within three feet of our fireplace and must have risen at least thirty feet since we landed. The air was now so cold from a copious fall of dew that we were obliged to resort to our blankets and cloaks for warmth; but with the sun the mercury rose from 80 to 88 and 90 degrees; and the morning being quite calm became excessively sultry. On reaching the cutter we found that Mr. Roe had returned the preceding evening from having examined the north-east shore of the basin and traced two openings that trend for a short distance in on either side of the mounts. On his return he pulled round the south side of St. Andrew's Island and landed at its south-west end where he made a fire which spread rapidly through the dried grass and set the surface of the island in a blaze. It continued to burn for several days afterwards. During our absence the shore of the bay of anchorage had also been examined and several pools of water were discovered, from which we filled our empty casks. Mr. Cunningham ascended the hills which rose nearly perpendicularly for at least 400 feet; they were thickly clothed with trees and plants from which he obtained a large addition to his collection. In wandering about through the spinifex upon the cliffs he saw four small kangaroos; and near the waterholes one of the crew saw a fifth, of a gray colour and of a larger size than usual. Our people were now all laid up with sores upon their feet and legs from cuts and bruises received in scrambling over the rocks; and several were affected by ophthalmia. Besides this the rainy season was approaching; it commenced last year about the 18th of October, and as the weather was now close and sultry and daily getting more unfavourable, the change was evidently at hand. October 13. We therefore determined upon quitting the coast as soon as possible; and as there was nothing to detain us here any longer we weighed the following afternoon as soon as the tide commenced to ebb. Our distance from the mouth was sixteen miles and the breeze blew directly against us but, as the tide was running out with great strength, we succeeded in reaching an anchorage in Brunswick Bay before dark; not however without incurring considerable danger in passing through strong tide ripplings when abreast of Rothsay Water; which caused me to suspect that it communicated with Prince Frederic's Harbour.