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Visit to the British Museum
4
CA L EB EVAN8 ON THE 8T RA TA OF BEVENOAK8 TUNNEL.
The R agst one series consists of about 20 banns of st one, separated by softer bnuds of sunclst one with g reen g rains, known as H assock. The beds become more sandy in the upper porti on of the section. The R agstone beds ar e about 100ft . thick. The fossils of the Kentish Rag g roup are found, for the most part, in the Hassock. Th e most abundant arc Lima Cottaldina, D'Orb, and Triqonia sp inosa var ., Sow. (T, ornata, D' Orb.), Terebratella oblonqa Sow., and a Pli catula are occasionally found . After crossing a valley, th e line, near Riverhead, cuts through another ridge entirely composed of the high est portion of the Lower Greens and, consisting of yellow and ferruginou s sands, with no trace of stone except irregular bands and veins of pebbly ironstone, and devoid of fossils; and th e line th en passes over the broad valley of the Gault. In conclusion, the auth or noticed the conditions under which the Sevenoaks deposits had been formed, and also the Britishand F oreign equivalents of the beds.
VISIT TO THE BRITISH MUSEUM. On Wednesday, Mar ch 23rd, 1870, a party of th e Members of the A ssociation visited the Briti sh Museum for th e purp ose of inspecting the Geological Department, when brief descriptive lectures on vari ous portions of the collection were delivered by the Presid ent, William Carruthers, E sq., F.G.S., F.L.S., Henry W oodward, Esq., F.G.S., F.Z.S., Professor Tennant, and Edward Charlesworth, Esq., F.G.S.
CA L EB EVAN8 ON THE 8T RA TA OF BEVENOAK8 TUNNEL.
The R agst one series consists of about 20 banns of st one, separated by softer bnuds of sunclst one with g reen g rains, known as H assock. The beds become more sandy in the upper porti on of the section. The R agstone beds ar e about 100ft . thick. The fossils of the Kentish Rag g roup are found, for the most part, in the Hassock. Th e most abundant arc Lima Cottaldina, D'Orb, and Triqonia sp inosa var ., Sow. (T, ornata, D' Orb.), Terebratella oblonqa Sow., and a Pli catula are occasionally found . After crossing a valley, th e line, near Riverhead, cuts through another ridge entirely composed of the high est portion of the Lower Greens and, consisting of yellow and ferruginou s sands, with no trace of stone except irregular bands and veins of pebbly ironstone, and devoid of fossils; and th e line th en passes over the broad valley of the Gault. In conclusion, the auth or noticed the conditions under which the Sevenoaks deposits had been formed, and also the Britishand F oreign equivalents of the beds.
VISIT TO THE BRITISH MUSEUM. On Wednesday, Mar ch 23rd, 1870, a party of th e Members of the A ssociation visited the Briti sh Museum for th e purp ose of inspecting the Geological Department, when brief descriptive lectures on vari ous portions of the collection were delivered by the Presid ent, William Carruthers, E sq., F.G.S., F.L.S., Henry W oodward, Esq., F.G.S., F.Z.S., Professor Tennant, and Edward Charlesworth, Esq., F.G.S.