called a limestone. Most of the valves crushed by pressure except the thick part near the hinge. Found however one or two nearly perfect.

The coal in the St Mary R. valley, occurs about 2. m. N of the line. It is seen just at the river level & is partly covered by water. Ashes party have dug out all that occurred above water level & it is now difficult to see anything distinctly. The bed appears to be about 18 inches thick & breaks with a cubical fracture cut fragments with shining faces looking like very good fuel. It has a layer of black carbonaceous shale above & below it. The upper layer of shale is a few inches thick & is followed by a hard shell bed of 18" or 2' thick. of blackish colour but weathering whitish. The shells here again are principally oysters & the bed must come near the same horizon as that last seen. It may even be the recurrence of the same bed as the rocks here about are very sharply folded & even perhaps partly overturned.

Above the oyster bed a considerable thickness of flaggy & ripple marked sandstones occur greyish & brownish grey in colour.These dip where examined S. 28" N - 35". The sandstones mentioned as occurring along the river (Aug.7.) underlie the coal. The ripples indicate a current in a direction S.14"W.

About 1/4 mile S.E. of the coal exposure similar sandstones associated with greenish grey clay beds occur. The fossiliferous bed also recurs but is not