See hereafter.) In the vicinity of Cambridge Gulf, Captain King states, the character of the country is entirely changed; and irregular ranges of detached rocky hills composed of sandstone, rising abruptly from extensive plains of low level land, supersede the low and woody coast, that occupies almost uninterruptedly the space between this inlet and Cape Wessel, a distance of more than six hundred miles.

Cambridge Gulf, which is nothing more than a swampy arm of the sea, extends to about eighty miles inland, in a southern direction: and all the specimens from its vicinity precisely resemble the older sandstones of the confines of England and Wales.* The View (volume 1 plate) represents in the distance Mount Cockburn, at the head of Cambridge Gulf; the flat rocky top of which was supposed to consist of sandstone, but has also the aspect of the trap-formation.

The strata in Lacrosse Island, at the entrance of the Gulf, rise toward the north-west, at an angle of about 30 degrees with the horizon: their direction consequently being from north-east to south-west.
(*Footnote.

I use the term Old Red Sand Stone, in the acceptation of Messrs.

Buckland and Conybeare, Observations on the South Western Coal District of England.