24 THE KEY, KDWJX HILL OX THE [Feb. I912, 



a field barely 100 yards off. About a mile from the town, also on 

 the left (north-east) side of the road, is a sandpit (7) which shows 

 bedded sands and Glacial Gravel. 



The high road running southwards from the town, to Great and 

 Little Cornard, passes a large chalk-pit (8) near the railway- 

 station/ with Chalk, Thanet Sands, Crag, Glacial Gravel, and clay. 

 Farther on, a road to the left (Cat Lane on the Ordnance-Survey 

 6-inch Map) skirts the remains " of an extensive quarry (9). This 

 is much overgrown, but Chalk can still be seen at its southern end, 

 and beyond its northern end Crag is seen at the back of the 

 Mauldon Gray Inn, not far from (5), but south-west of the high 

 road. 



In Great Cornard, a lane beside the church leads near to a 

 pit (10) in a field about 300 yards east of the rifle-butt ^ ; this 

 shows a deep section in red sands, which I suppose to be Crag. 



Leaving the town by way of Ballingdon Bridge, and taking a 

 road southwards on the right bank of the Stour, we pass on the 

 right the great Ballingdon Chalk-pit (11), described in the 

 Survey Memoirs.^ iS"ow, only Chalk and Thanet Sands are seen, 

 with occasionally a trace of Woolwich and Reading Beds; over 

 these is some late gravel. A little farther, on the left, is an 

 entrance to the Ballingdon-Grove^ Brickworks (12). These 

 contain Boulder Clay, gravels, and sands. The clay has been 

 washed for brick-making, and in the residues some far-travelled 

 rocks have been found. Much of the clay has now been dug away, 

 and gravel is worked ; below this Thanet Sands have been disclosed 

 (also, a pit about 50 yards south of the western end is chiefly in 

 these). 



The high road leading south-westwards from Ballingdon Bridge, 

 as it mounts Ballingdon Hill, passes on the left (east) the 

 entrance to an extensive sand-pit (13) in the field. ^ This shows a 

 great thickness (perhaps over 40 feet) of false-bedded sands, with 

 Boulder Clay lying upon them. 



The Victoria Brickworks (14), north-west of Ballingdon 

 Bridge,"^ are chieflj^ in late gravels, but some Thanet Sands are 

 visible at the south-western end, up towards the mill. 



All the above-named pits are within a mile of Sudbury. About 

 2 miles south of the town, the brickworks (15) in Little 

 Cornard contain Thanet Sands, a considerable thickness of false- 

 bedded sands and gravels, some grey clay, and in this clay very 

 large transported masses of Chalk. A few hundred yards up an 

 adjacent lane (Chapel Lane, on the Ordnance 6-inch Map) a 

 small excavation (16) affords the only section "* at present known 

 to me of Woolwich and Reading Beds. 



*& 



' Mem. Geol. Surv. 1878, p. 16, fig. 4? 



^ Ihid. 1878, p. 15 : ' East of Sudbury is a line of Chalk-pit[s].' 



^ Apparently opened since the publication of the Survey Memoirs. 



4 Meiu. Geol. Surv. 1878, p. 14, fig. 3. 



5 3id. 1878, p. 57 : 'At the great brickyard east of Balingdon." 



fi Apparently opened since the publication of the Survey Memoirs. 



^ Mem. Geo]. Surv. 1885, p. 132. 



** Apparently opened since the publication of the Survey Memoir?. 



