1854.] 



PRESTWICH AND BROWN FISHERTON DRIFT. 



103 



Half-way between Wilton and Salisbury, and nearly on the same 

 level as the above, the section of the Drift presents a very different 

 appearance. 



Section on the Railway beneath the High-road near Bemerton. 



a. Earth and gravel ; 1 foot. 



b. Gravel, chalk-rubble, clay, and brick-earth, mixed ; 3 feet. 



c. Brick-earth, with a few dispersed angular flints and some shells {Succinece and 



Helices) ; 8 feet. 



d. Patch of coarse gravel, as above, with a base of brick-earth ; 1 foot. 



e. Brick-earth, rendered porous by numerous very fine Serpula-like perforations ; 



only a very few angular flints, and no shells ; 10 feet. 



The bed e' is underlied by flint-rubble ; but the base of the deposit 

 is not shown. 



At the shallow cutting adjoining the Fishertou Station at Salisbury, 

 5 to 10 feet of coarse gravel-drift, mixed with much green sand and 

 some clay, and abounding with most of the same shells as occur at 

 Mr. Harding's pit, repose upon a very irregular and much-indented 

 surface of the Chalk (fig. i). Near this spot, but higher on the 

 slope of the hill between the Devizes and Bath roads, are several 

 large brick-pits (figs, i, 2, 3). 



The occurrence of Bones had long been noted at these pits, but it 

 was only two years since that my attention was drawn by Mr. Har- 

 ding, the proprietor of one of the pits, to a bed full of shells under 

 20 to 25 feet of drift of a similar character to that which has been 

 described in the preceding sections, except that here it is freer from 

 flint-rnbble and exhibits a preponderating mass of brick-earth. The 

 following section shows the relative position of the layers of Drift at 

 this spot : — 



Fig. 3. — Section at Mr. Harding^ s Brick-pit, Fisherton, Salisbury^ . 



> 20 to 25 feet. 



■Sr«??ai^-c-^p^- ;e 



J 



"---^;-^;^^ d ...Level of bottom of pit. 





> Probable Section. 



Earth and flint-rubble, variable ; 1 to 2 feet. 



Rubble of angular flints, fragments of chalk, and flint-pebbles, in clay and 

 brick earth ; 4 to 6 feet. 



Brick-earth, mixed with variable masses of flint- and chalk-rubble, and con- 

 taining bones and a few shells, chiefly in the lower part ; 10 to 18 feet. 



* The exact bearing of this pit is 0*7 mile in a direct line N.W. from Salisbury 

 Cathedral. 



I 2 



