244 
THE GEOLOGIST. 
Geological Society and other gentlemen interested in the matter; 
and on the 22nd of April, Sir Charles Lyell, Mr. Prestwich, and Mr. 
John Evans ^-isited the pit with myself, and made an examination 
which was most satisfactory. This discovery furnishes many impor- 
tant points of evidence in this inquiry, and as 
it will probably be referred to not nnfreqnently 
|1^«> hereafter, we append an engraving of the section 
JHjl of the locality. The locality where this dis- 
HH covery was made is in the valley of the Ouse, 
and is about a mile and a haK north-west of Bed- 
ford. The gravel lies on the Oolitic limestone, 
^Wj _ and the pit surface is about fifty feet above the 
\j I level of the river. The valley at this point is 
' 2 bounded by ridges of Boulder clay, which rise 
respectively ninety feet on the west and one 
hundred and thirty on the east. The drift comes 
in at the northern end of the county, by Sham- 
brook, and extends southward through Bletsoe, 
Milton Ernest, Radwell, Clapham, Bromham, 
Biddenham, Bedford, Kempston and Elstow ; 
and then goes eastwards through Harrowden, 
Cardington and Cople. The two flint-imple- 
ments from Biddenham were exhibited before 
the Geological Society on the 8th ult., and are 
very fine specimens. The oval one is worked 
along the edges throughout, except about ofie 
inch of its length, and has a bright ochreous 
patina all over it of the same tint as the gravel 
in which it had been bedded. It is nearly six 
inches in length, and nearly four inches across, 
at the widest part. One side is smooth and 
glossy : the other is dull, and has incrustations 
of carbonate of lime : a certain proof that the 
implement laid flat in the gravel, and that this 
side was the upper surface receiving the fil- 
trations from the beds above. The pointed 
" hache," which is constructed from a grey flint, 
is seven inches in length, massive at one end 
and worked ofl* to a wedge-like point at the 
other, displaying a boldness of design equal to 
that shown in the finest specimens found at 
Amiens. It is stained with an ochreous tint, 
but not so deep in tone as that on the oval imple- 
ment, and there are dark ferruginous stems 
along both surfaces. Another of these " haches" 
has been found near Bedford. Myself and Mr. 
Nail were returning from the examination of a 
gravel pit when the latter picked up from some 
railway-ballast a small one. This ballast had 
io 
