Geological Magazine, Volume 3,Deel 4 -Volume 4;Volume 24;Volume 4,Nummer 251

appears Archæan augite Bagshot band beds Bernissartia bones Boulder-clay British Museum Cambrian Carboniferous Chalk character Chert Chondrosteus collection Crag Cretaceous crystalline crystals Ctenacodon Cythere deposits described diorite district Dollo dorsal drift dykes elegans England Eocene evidence fauna feet felspar figured flora foliation formation fossils fragments Frederick McCoy gabbro genera genus Geol GEOLOGICAL MAGAZINE Geological Society Geological Survey geologists glacial glacier gneiss granite Greensand grits Hill hornblende igneous Iguanodon latter Limestone LL.D London Clay lower LUDGATE HILL margin mass Memoir metamorphism miles mineral Miocene North occur original paper plates porphyritic portion posterior premolars present Price probably Prof referred resemblance ridge rocks sand Sandstone schists Scudder seen serpentine shales shell silica Silurian siphuncle species specimens spines strata structure surface Tertiary thickness TRÜBNER Upper valley veins vertebræ Wales whorl Woodward zone