Soissonnais sands, or Lits coquilliers, with _Nummulites planulata_ (p. 275). Claiborne beds of the United States, with _Orbitoides_ and _Zeuglodon_ (p. 279). Nummulitic formation of Europe, Asia, etc. (p. 277). 9. LOWER EOCENE. British London clay proper (p. 263). Woolwich and Reading series, fluvio-marine (p. 267). Thanet sands (p. 269). Foreign Argile de Londres, near Dunkirk (p. 252). Argile plastique (p. 276). Sables de Bracheux (p. 276). SECONDARY OR MESOZOIC. CRETACEOUS 10. UPPER CRETACEOUS. British Upper white chalk, with flints (p. 290). Lower white chalk, without flints (p. 298). Chalk marl (p. 298). Chloritic series (or Upper Greensand), fire-stone of Surrey (p. 298). Gault (p. 300). Blackdown beds (p. 301). EXAMPLES CRETACEOUS 10. UPPER CRETACEOUS. Foreign Maetricht beds and Faxoe chalk (p. 233). Pisolitic limestone of France (p. 285). White chalk of France, Sweden, and Russia (p. 286, 287). Planer-kalk of Saxony (p. 293). Sands and clays of Aix-la-Chapelle (p. 302). Hippurite limestone of South of France (p. 305). New Jersey, U.S., sands and marls (p. 307). 11. LOWER CRETACEOUS or NEOCOMIAN. British Sands of Folkestone, Sandgate, and Hythe (p. 308). Atherfield clay, with _Perna mulleti_ (p. 309). Punfield marine beds, with _Vicarya lujana_ (p. 318). Speeton clay of Flamborough Head and Tealby (p. 311). Weald clay of Surrey, Kent, and Sussex, fresh-water, with _Cypris_ (p. 313-5). Hastings sands (p. 316-8). Foreign Neocomian of Neufchatel, and Hils conglomerate of North Germany (p. 312). Wealden beds of Hanover (p. 319). OOLITE 12. UPPER OOLITE. British Upper Purbeck beds, fresh-water (p. 323). Middle Purbeck, with numerous marsupial quadrupeds, etc. (p. 324). Lower Purbeck, fresh-water, with intercalated dirt-bed (p. 330). Portland stone and sand. (p. 334). Kimmeridge clay (p. 335). Foreign Marnes à gryphées virgules of Argonne (p. 336). Lithographic-stone of Solenhofen, with _Archæopteryx_ (p. 337). 13. MIDDLE OOLITE. British Coral rag of Berkshire, Wilts, and Yorkshire (p. 339). Oxford clay, with belemnites and Ammonite (p. 340). Kelloway rock of Wilts and Yorkshire (p. 341). Foreign Nerinæan limestone of the Jura (p. 339). 14. LOWER OOLITE. British Cornbrash and forest marble (p. 341). Great or Bath oolite of Bradford (p. 342). Stonesfield slate, with marsupials and _Araucaria_ (p. 345). Fuller’s earth of Bath (p. 348). Inferior oolite (p. 349). LIAS 15. LIAS. Upper Lias, argillaceous, with _Ammonites striatulus_ (p. 353). Shale and limestone, with _Ammonites bifrons_ (p. 353). Middle Lias or Marlstone series, with zones containing characteristic Ammonites (p. 353). Lower Lias, also with zones characterised by peculiar Ammonites (p. 356). TRIAS 16. UPPER TRIAS. British Rhætic, Penarth or _Avicula contorta_ beds (beds of passage) (p. 366). Keuper or Upper New Red sandstone, etc. (p. 369). Red shales of Cheshire and Lancashire, with rock-salt (p. 371). Dolomite conglomerate of Bristol (p. 373). Foreign