252 W. H. Hudledon — Creechhayyow in Piirbecl,-. 



which extends N.N.E. from the summit. It must not be supposed 

 that the calcareous beds have been proved every yard of the way. 

 There are two places on this spur, above the 500 feet contour, where 

 ' marl ' has been found close to the surface. The highest of these is 

 250 feet, measured horizontally from the last pit where we found the 



Ciay/iU 



35pft 

 'Sandfilt 



Fig. o. — Tlie Xortliem Slope of Creechbarrow. 



a. Hill-top, or Creeclibarrow limestone. b. Brown Clay series. 



c. Sands underlying the Brown Clay. 



hard hill-top limestone. I should observe that the term ' marl' merely 

 refers to a softened condition of the limestone. There is a well- 

 marked bluff about the 500 feet contour, near where the calcareous 

 series terminates, and the following section, derived from a series 

 of trenches which we made in the hill-side, shows the nature 

 of the Creechbarrow series at this point. The top of the section 

 just reaches the 500 feet contour. 



A'oiiTHERN Section. 



ft. in. 



a. Surface with tree roots, etc. ... 



b. Fine clayey sands with flints 



c. Sandy without flints ... 



d. Tough yellow clay 



e. Upper marl 



/. Tough clay 



g. Main marl 



N.B. — There is a break here owing- to old 

 workings, Avhich avouM add to the marl 

 h. Impure marl containing sand — a passage bed 

 i. Bulf clayey sand 

 j. Flint gravel and sand 



Total section 



This series of beds rests upon a buff-coloured clay. 



(6) Is a very extensive and important deposit, the thickness of 

 which it is not easy to estimate. It can hardly be less than 40 feet 

 thick and may be more, and constitutes an important feature along 

 the north side of the hill on both sides of the 400 feet contour. In 

 the brickearth are said to be lenticular masses of sand with flints at 

 the bottom, which to a certain extent detracts from its value for 

 brick and tile making. The brown clay series, in which Mr. Bond's 

 clay-pit and brickyard are situated, rests on sands (c) which may be 

 well studied at the ' Sand-t)it.' 



