248 W. If. Hudleston — Creechharroio in Purheck. 



this brittleness the available fragments do not mucli exceed 28 lbs. 

 in weight, so far as I have seen them, though it may well be that 

 much heavier flints than these occur. The surface of those flints 

 which are not much broken has been subject to very little modification 

 from abrasion. Associated with the big flints are flint pebbles and 

 other stones of moderate size, also quartzose grit. 



Having ascertained the undoubted existence of indigenous lime- 

 stone on Creechbarrow, it became necessary to obtain some further 

 knowledge both of its mode of occurrence and general character. 

 Pits were opened in one or two places, and especially on the 

 summit. Before proceeding to describe the summit pit (No. 5) 

 I will submit the section of No. 4 pit, which is on the south slope 

 of the actual summit and forms part of the escarpment (see Fig. 4, 

 p. 255). 



The following sequence was observed : — 



ft. in. 



1. Soil with few fliuts, fragments of pottery, oyster 



shells, etc. ... 1 6 



N.B. — A deposit of this nature forms a sort 

 of talus to the whole section on the hill-side.^ 



2. Softish tufaceous limestone ... ... ... ... 2 6 



3. Passing downwards into sands full of calcareous 



concretions 



4. Band of yellow clayey sand ... ... 



5. Loose bnff-coloiu-ed sands ... 



6. Layer of large flints of the Creechbarrow type 



7. Pale buff-coloured sands (not bottomed) 



Total 



For convenience this section was cut in three steps. It was here 

 that the principal evidence for dip was obtained. No bedding was 

 observable in the tufaceous limestone, and the irregular nature of 

 its base causes it to be of little use for stratigraphical purposes. 

 The thin band of " yellow clayey sand " was more useful, and also 

 the " flint layers," so that from these and other indications an 

 inclination of 9 inches in 48 inches was observed, the direction being 

 somewhat to the west of north, or at any rate northerly. This may be 

 calculated into an incline of 1 in 5*5 = 11° nearly. The identification 

 of the particular flint band in another pit, supposing such identification 

 to be correct, serves to confirm the amount of dip and also the 

 direction. The longer axis of the hill itself runs in a direction 

 about N.N.E., being nearly at right angles to the trend of the long 

 Purbeck Hill, and this peculiar conformation is especially noticeable 

 from many points in the Frome Valley. The great bulge which 

 the Creechbarrow Beds impress upon the Pipeclay series has the 

 same direction as the longer axis of the hill. Hence the observed 

 dip and the dip slope (see Fig. 3) are slightly divergent. On the 

 whole, without attempting an accuracy which in beds of this 



^ As regards these deposits in the soil and in the semi-artificial talus, I have the 

 following note: — Black soil with pottery, oysters, limpets, mussels, periwinkles, 

 bones, fragments of Purbeck stone (dressed), iron sand, pieces of the bill limestone, 

 old pipes, etc. 



