The authors of the present Monograph, after due consideration of the materials at their disposal, have thought fit to limit their illustrations to the Testacea of the Great or Bath Oolite; a term under which they would include the series of beds situated between the Fullers-earth strata upon which they repose, and the Bradford clay to which they are subjacent. To have enlarged the plan, so as to include the Testacea of the Corn-brash and Forest marble, would doubtless have been more comprehensive; but in the present state of our knowledge, the advantage would have been rather apparent than real.

Testa subrhomboidea, fornicatd, concentrice lineata, umbonibus terminalibus incurvis, carina dorsali acuta, latere postico abrupto, lunula plana. (Goldfuss.)
Shell nearly rhomboidal or cordiform, elongated; unibones terminal, rather augulated and incurved; dorsal surface with an elevated acute angle; the lunule is very small and cordiform, its borders rounded; the anterior portion of the surface has concentric lines, which pass over the carina, and are soon lost upon the flattened posterior surface.

Ce fascicule représente une partie de la thèse de Doctorat d'Etat que j'ai soutenue à la Faculté des Sciences de Paris en juin 1956. Il concerne la description systématique des fossiles crétacés recueillis au Congo Belge, en Cabinda et au Congo Français par M. Dartevelle, Conservateur à la Section de Zoologie au Musée Royal du Congo Belge à Tervuren, et au Cameroun, au Gabon et au Moyen-Congo par des géologues de la SB.A.E.F. et d'autres missions de Recherche. Les premiers de ces fossiles, qui m'ont été confiés par M. Dartevelle, avaient fait, en partie, l'objet d'une détermination préliminaire de MM. Dartevei.ee et Roger (1), les seconds m'ont été confiés par M. Hourcq, géologue en chef de la S.P.A.E.F. et par M. Furon, sous-Directeur du Laboratoire de Géologie du Muséum National d'Histoire Naturelle de Paris.

The Mongolian Code for the Public Reporting of Exploration Results, Mineral Resources and Mineral Reserves (hereinafter referred to the MRC Code) has been prepared by the Mongolian Mineral Resources and Reserves Committee (MRC) of the Mongolian Professional Institute of Geosciences and Mining (MPIGM) with participation of the Committee for Mineral Reserves International Reporting Standards (CRIRSCO) and Mongolian State Professional Committee on Mineral Resources (MSPCMR).