598 



MESSES. GAEDITEK, EEEPIIS'G, AND MONCKTON ON THE 



as at Alum Bay, and the whole series of Upper Bartons above the- 

 Ohama-'beds is obscured by weathering and by gravels. The 

 vertical section is : — 



ft. in. 



Ckama-heds, partly stained by gravel, about 18 



Drab clay 1 6 



Shelly bed 22 



Septaria 1 



Drab clay 9 



Grreenish compact clay, no base seen 10 9 



62 3 



The fossils met with were numerous, but small, most of them 

 being species common to the Middle and Lower Bartons. Among 

 them, however, were Pleurotoma exorta and P. macilenta, two of 

 the most characteristic shells of the Middle Barton. If the bottom 

 bed is Lower Barton, as appears probable, the Middle Bartons are 

 reduced to a little over 80 feet thick. 



The outcome of the true Bartons is limited to a relatively short 

 distance, but it is probable that the Becton-Bunny and Long-Mead- 

 End Beds may occupy a tract between two and three miles wide. 

 They only show in the cutting for a distance of over 1200 yards as 

 yellow sands, rising from 1 to 8 feet, under a capping of 20 or 

 more feet of gravel; but these are succeeded in the next hill by a 

 greater thickness of whity-drab clays, extending for a further 

 distance of 2700 yards. The Faludina-'b eds of the Lower Headon 

 appear in a depression beyond this point, but their actual junction 

 could not be traced at the time of our visits. The beds must be 

 nearly horizontal, for they extend for the next 2 miles with little 

 change, except that they are violently squeezed and contorted for 

 a distance of 400 yards out of the last half-mile (fig. 6). 



Fig. 6. — Contorted Lower-Headon Beds, about 2330 yards west of 

 the Brockenhurst Road. 







s^^*^^^<^ 





a. Gravel. 



h. Ligbt steel-grey clay, w^ith shelly bands of crushed Paludincs, .&c. 



Nothing further is visible, except gravel, for about a mile, when 

 some white sand, some small patches of lignite and crimson-mottled 

 clay are visible; but the bedding is disturbed and confused, as if 

 tknistupfrom below, and we can only conjecture that the sand may 

 represent the horizon of the Crocodile-beds. They extend hori- 

 zontally for 500 yards, the lignites occurring close to the bridge over 

 which the Brockenhurst Eoad is carried. The section ends with 18 



