The pebble-bed of the Lower Greensand of Godalming has been already referred to (‘Geologist,’ vol. vi. pp. 53, 54) as a singular deposit, underlying the Bargate-stone series of that neighbourhood, remarkable alike on account of its peculiar organisms and its (probable) relation to other distant, though somewhat similar, beds; its position in the Greensand is fortunately well-marked, being immediately at the base of Fitton's ‘Upper or Ferruginous division;’ or, following the nomenclature of the Geological Survey, at the base of the ‘Folkestone Beds.’ in composition, it may be roughly described as a mixture of sand and small subangular pebbles, either loosely bedded or variously concreted. Its thickness at Godalming varies considerably, thinning out rapidly to the south of the town, but increasing on the north, in approaching the Hogsback, to a thickness of 8 or 10 feet; occasionally passing into, and alternating with, the lower layers of the Bargate-stone.

The identification of the Rhætic Formation in Britain, previously discovered to be intercalated between the Keuper Marls and Lower Lias Shales in Germany, we owe to the labours of Dr. Wright, F.G.S., and Mr. Charles Moore, F.G.S., In the year 1860, the former published an account of the strata beneath the Lias, characterized by the occurrence of Avicula contorta; the latter, in the following year, showing in a most valuable paper the true relation of the sandstones, shales, and limestones to the White Lias above and the Keuper below, added upwards of twenty-eight new species to the list of British Fossils.