An Ostrea crista galli. Linnæus.

An Ostrea under valve, with a cast of the inside of the upper valve.

A Gryphæa bullata

A Gryphites incurva. Sowerby’s Mineral Conchology, 112, 1 and 2.

An Ammonites seratus. Sowerby’s Mineral Conchology, 24.

An Inoceramus Cuvierii hinge.

An Unio hybrida. Sowerby’s Mineral Conchology, 154, fig. 2.

Several Unios.

A piece composed entirely of shells, the chief part of which are the Serpula auricula. It also contains an inside cast of a small turretted shell.

A Tellina.