m the South English Chalk 



453 



Bubbly Chalk nearly all reconstbucted. 



o3 O 



CO CO 



V .5 



O -g 

 CD & 



Strong marl seam in recess. 

 Chalk with three marl seams, embracing the 

 sharp corner E ..... . 



Marl seam. 

 Chalk with 0. pilula and three marl seams, 

 embracing the blunt comer, the lower part 

 strongly veined and honeycombed with calcite 



Marl seam wide open, 

 l' Chalk with three marl seams, one of them open 



Marl seam. 

 Chalk 



Marl seam cut by slide plane 3 feet 

 , above beach. 



' Chalk with one marl seam .... 



Thick marl seam. 

 Chalk 



Marl seam. 

 VChalk 



ft. in. 



16 6 



7 9 



6 3 



Flint seam. 

 Chalk with Marsupites in highest bed . . 14 6 

 Very thick marl seam cut by slide plane 

 about 4 feet above beach. 

 Chalk with four marl seams and Marstipites in 



lowest bed . . . . . . . 14 6 



Flint seam. 

 ^ Chalk without Marsupites or Uijitacrinus . 3 6 



Marl seam. 

 'Chalk without Uintacrinus or Marsupites . 2 6 



Flint seam. 

 Chalk with Uintacrinus . . . . .16 



Thick seam of crushed flint cut by slide 

 plane about 8 feet above beach. 

 Chalk 10 



Marl seam. 

 Chalk 16 3 



Marl seam. 

 Chalk with Uintacrimis brachials . . .66 



Marl seam. 



ft. in. 



24 3 



50 9 



32 6 



27 9 



The boundaries taken for the zone of Marsupites and the 

 Uintacrinus band are of course tentative ; the combined thickness 

 of 60 feet assigned to thera is obviously a minimum, and may prove 

 to be considerably within the mark. The marl seam taken as the 

 base of the Uintacrinus band is the last in descending order for some 

 way ; there are two, one thin and one thick, close together a little 

 west of the rain-water gully and one a little beyond it, and then the 

 cor-anguinum chalk finally asserts its usual marlless character. The 

 resemblance between this sequence and the corresponding one at 

 Scratchells Bay is striking. 



It will be seen that 51 feet above the highest point to which 

 I have traced Marsupites an unmistakable representative of the 

 subzone of abundant 0. pilula makes its appearance, at least six 



