In this paper I have not made any attempt to correlate the Gault of Folkestone with beds of similar age in other parts of England or of the Continent, but simply to describe the Gault as seen at Folkestone, and to give a list of its fossils. Not having had time to examine the Gault in other parts of England, I am not in a position at present to state whether these divisions will hold good over extended areas. Upon some future occasion I hope to place before this Society a more general paper upon the Gault, correlating the various beds. The Geological Magazine for April, 1868 (vol. v. No. 4), contains a most valuable paper entitled the “Albian or Gault of Folkestone,” by Mr. Charles E. De Rance, of the Geological Survey. In this paper Mr. De Rance divides the Gault into eleven zones, all of which are well marked and have been recognized more or less by all geologists and fossil-collectors who have visited the district. Provisional names have been assigned to these beds, indicative either of their colour, position, or fossil contents.