MINERALS occur rarely in this part, and in very small quantities. Lumps of sulphuret of iron in the oolite stratum; earthy oxide of iron and a singular blue pulverulent mineral, which is a carbonate of iron containing some earthy impurities, in a valley at Salmonby; and a stalactitic oxide of iron in the ferruginous gravel; comprise all the varieties which have yet been found. Although ORGANIC REMAINS are to be found in some parts of this district in considerable quantities, yet they do not include many varieties. The following list of those now in the possession of the author, comprises one of almost every species which has yet been found. _From the Chalk Stratum_. No 2. Teeth of the Squalus or Shark. An Impression of a Vertebræ. A Terebratula subundata. A Terebratula subrotunda. A cast within some bivalve Venus. A cast within a Terebratula semigloboso. _Sowerby’s Mineral Conchology_, 15. An Inoceramus Cuvierii. An Echinus. _From the Oolite Stratum_. No. 4. An Ostrea, curious and not named. A bivalve, not named. A piece composed of the Serpula auricula. _From the Sand Stone Stratum_. No. 5. Ad Ammonites, curious and not named. It is without a keel; else like Ammonites inflatus. A Cardita. _Sowerby’s Mineral Conchology_, 197. An Inoceramus. An Unio. A Terebratula approaching glaber. A Terebratula approaching acerminatus. A Lucina concentrica. A cast within a bivalve, not named. A cast within a Trochus. A cast within a Trigonia. A cast within a Venus. A cast within a Pecten. A cast within a Cardium. Several Bellemnitæ. _From the Shale or Clunch Clay_. No. 6. An Os Femoris of the Ichthyosaurus or Giant Lizard. Several Vertebræ of the same animal. An Ammonites, not named. A Venus equales. _Sowerby’s Mineral Conchology_, 21. A Cardita. 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. A Pentacrinite. A Mytilus. Several Bellemnitæ. _From the beds of Ferruginous Gravel in Alluvium of Shale_. No. 3. A Tooth of the Elephant or Mastodon. An Inoceramus Cuvierii. An Ostrea, with a cast of the upper valve. A cast of an Unio indistinct. A chama. A cast of Shell, not named. An Echinus. Several bellemnitæ. A Madrepore. An Alcyonium. An Astarte. A part of a Spongites.