{ { White siliceous cavernous limestone with { { _Lucina globulosa_, Desh., _Gisortia_, { { _Rostellaria_, _Eschara Duvali_, { { Michelin., (Probably ≡ bed No. 1 of our { { J. Rayan section) 10 { { { { Greyish-yellow marl, rich in places with { Id. { _Ostrea Gumbeli_, _Pecten mœlehensis_, { { May.-Eym., _Vulsella chamiformis_, { { May.-Eym., _Velates Schmiedeli_, Chemnitz, { { _Cerithium fodicatum_, _Pleurotoma_, { { _Borsonia_, _Fusus_, _Rostellaria_, etc. 6 { { { { Yellowish sandy marl, with small { { nummulites. PARISIAN. { { { Yellowish marls, divided by one or two { { bands of red clay, with _Nummulites { { gizehensis_ 7 { { { Ic. { Hard bedded clay 1 { { { { Vari-coloured gypseous marls 4 { { { { (Probably ≡ beds 2, 3, 4 at J. Rayan). { { { Very hard, rich greenish-grey, siliceous { { limestone with _N. gizehensis_, _Pecten { { corneus_, J. Sow., and _Lucina_ (_L. { Ib. { consobrina_, Desh., and _L. Defrancei_, { { Desh.). 4 to 5 { { { { (Probably ≡ upper part of bed 5 at J. { { Rayan.) There is a considerable difference in thicknesses between the above section and that of Jebel Rayan. Our heights agree closely with those of Schweinfurth, so that it is probable that Mayer-Eymar is in error, notwithstanding his challenge of Schweinfurth’s figures in the paper mentioned. _B._—=Ravine Beds.=