4^ Proceedings of the 



referred to the distribution of the cirl banting in this neighbourhood, where 

 it seems to be confined exclusively to the chalk, upper greensand, and 

 gault, not being met with, so far as ho h id observed, on the lower green- 

 sand or Wealden. Mr. Whitehead stated that a common tern was observed 

 last summer at Gatton Lake. 



Mr. A. Bennett exhibited specimens of Scirpus parvulus, a species which 

 was found in 1878 by Dr. Crespigny, at Mortlake, and which thus forms an 

 addition to the Surrey Flora. This plant was first recorded in Britain in 

 1837 ; it was met wth in 1868 at the mouth of the river Ovoca, in Ireland, 

 and in 1872 at Lj'mington. 



Evening Meeting, February IWi, 1880. Mr. Gilford read a paper 

 entitled " The Gault of Folkestone as elucidating the Gault of this district." 

 He commenced by stating that the gault of Folkestone may he taken as a 

 perfect type of gault, all the various beds of that series being there met 

 with in the cliffs. De Kance and Prof. Price map out eleven zones or beds 

 of which the following are the descriptions in detail: — 



Lowest Bed, ox No. 1, Zone of Avimonites intcmqitus. — This is 10ft thick. 

 Commencing with the junction with the lower greensand is found a seam 

 of sulphuret of iron, loin, to 18in. thick; then a band of dark greensand, 

 containing a line of very large phosphalic nodules, which fall to pieces when 

 tapped with a hammer. Above this line is a line of crushed Ammonites 

 interruptus, with smaller phosphatic nodules ; these crushed fossils and 

 nodules are some of them coveied with small crystals of selenite, never 

 observed in fossils from the other beds. The dark greensand passes 

 suddenly into black clay, in which is a line of phosphatic nodules. The 

 sulphuret of iron seam contains large fragments of pho.sphatic wood. At 

 the top of the junction bed is a crushed band of fossils lin. thick, with line 

 of phosphatic nodules running through it. Am. Auritus Zone, or Bed No. 

 2. — 4ft. 2in. thick, is very dark clay, remarkable for the deep rich colour of 

 its fossils. Three inches from the base is a line of selenite in large pieces, 

 not occurring elsewhere ; one foot above the selenite is a line of phosphatic 

 nodules. Zone of Crustacea, or Bed Xo. 3.- 4ft. Gin. thick, light or fawn or 

 crab bed. Many Inoceramus concentricus are here. At the top of tliis bed 

 is a line of nodules, with many rolled casts of fossils, backs of crabs, and 

 bones of saurians and fishes ; a fine type of Inoceramus concentricus is 

 found in this line. Zone of Am. Delaruei, or Bed No. 4.— 4in. thick, rather 

 darker than No. 3, and not mottled like No. 5 ; at the top of this bed is a 

 line of nodules, and rolled casts of fossils. Am. Lautus Zone, or Bed Xo. 

 5._lf t. 9m., dark colour, spotted with light fawn markings. The coprolites 

 in this bed are generally grooved underneath, and are very seldom grooved 

 in the other beds ; they are sometimes very long. This bed is easily traced 

 on the beach by the number of coirolites with which it is studded, mainly 

 in two broad bands, one at the top, the other at the bottom ; they are 

 either long or small and irregularly round in shape. Am. Denarius Zone, 

 or Bed No. 6.— 1ft., mottled, bed darker and more strongly mottled than 

 No. 5, and very plainly defined on beach. Am. Auritus Zone, or Bed No. 7. 



