Page:Diary of ten years.djvu/407

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looked down upon what he conceived to be an inland sea lying to the East. He and his party hurried down to it, but to their surprise found that the appearance of water was the effect of mirage. They walked 15 miles, in a South East direction (I believe) on what was evidently the still moist bed of a scarcely dried up sea. There was the ooze and slimy mud, large blocks of coral, large shells of the conch species, and islands with their South East side steep, and the other sides gradually shelving. As far as they could discern with their glasses the appearance was the same. East South East and N.E. they saw no limit to it. Recently some natives brought large shells to York, which, they asserted, were brought from the N.W. On being questioned as to where they were got they said it was a place like the sea, but a ship could not go to the sea by it. My conjectural solution is this—that there has been a great inlet or estuary connected with the sea at Shark's Bay, and that some elevation of the coast has taken place which has cut off the communication with the sea. There are many proofs of volcanic elevations in this country. This inlet cannot well be supplied from the neighbouring sea at Shark's Bay, for the hills between it and the sea on which Grey stood were 300 feet high (apparently sand hills). It is a most strange and puzzling question, and my solution may be very far from the true one. Do you remember that Daubain asked me if, when I was out to the East, I had seen the "great estuary?"

Monday night.—There was a christening yesterday at Major Irwin's, and this day there was a ceremony of laying the foundation of a small voluntary church for the Missionary Society, erected on their grant near Guildford. The Governor was there and a good many people.

August 16th.—Ten native prisoners contrived to make their escape from Rottnest Island in a boat. It is quite incomprehensible how they managed to do so. The only remaining inhabitant of the island has been brought out of it, and will