216 J. 8. GARDNER—DESCRIPTION AND 
more recent angular gravel. Both supply material to the present 
beach. 
Fig. 4.—Mass of Black Sand imbedded in matrix of white siliceous 
sand and bored by Mollusca. 
A little over 3 miles due north of the Head there is another hill or, 
rather, range of hills of similar contour to that of Hengistbury Head. 
This, St. Catharine’s Hill, 160 feet high, possesses, like the head- 
land, a flat top and abrupt escarpments on all sides, and was also 
chosen as a strong place in ancient British times, as the remains of a 
camp, fort, four watch-towers, and numerous tumuli sufficiently prove. 
From the singular resemblance which the hill bears in outline to 
Hengistbury Head, and from its relative position, it seems certain 
that it must be composed of a second mass of identical strata. 
Although it is completely overgrown, except where a brick-pit has 
dug slightly into it at its northern end, the evidence there is alone 
almost conclusive. The following section is exposed :— 
ft. in. 
Highcliff Sand? Orange sand and clay .............2....0..02.02.-0-08- 3.0 
Heer Ash=colourediclay Mises cnsctnccser asec eae seer eee 3d 0 
Bae 5 Drab clay with iron concretions exactly as at Hengist- 
BN : j 
There |2)0 0A 7c cro DRM NR eA NERS BeS AER ADAP oEBECUmE nce naemcdaaocaeeecadad a) 
q Dark and very lignitic sand ............-2-sesesceeseenes esos 2 6 
White and yellow sand with layers of light clay almost 
White at base’ eich lass sagodstns sanoeseceeu ance neces ene 0 
Notwithstanding that the Hengistbury-Head beds have thus 
perhaps thinned out, there can be but little doubt of their identity. 
The valley of the Avon on the east is probably scooped out of the 
yielding Highcliff Sands ; and that of the Stour to the W. has been 
worn through the Boscombe Sands. The beds seen in the pits are 
again very variable, there being a lenticular patch of whitish sand 
with iron stains, 10 feet thick, on the east side of the pit. The dip 
