INFERIOR OOLITE : ANCASTER. 
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Passing on to Ancaster we 
again come to one of the more 
celebrated localities for free- 
stone, belonging to the Lin- 
colnshire Limestone. 
The general section of the 
stone-beds at Ancaster is as 
follows* : 
Upper "I 
Estuarine > Blue clay, &c. 
Series. J 
Lincoln- 
shire 
Limestone. 
Lower 
Estuarine 
Series. 
Northam- 
pton 
Sand. 
FEET. 
- 10 
- 20 
Rag 
Freestone 
Rag 
Freestone 
Pale limestones 
with scattered 
oolitic grains : 
false - bedded 
in lower part - 
Grey earthy 
limestones, 
with scattered 
oolitic grains 
Shelly oolite 
with ochreous | 
galls - -J 
Calcareous sand- 
stone and ir- 
regular clay 
band - 
50 
)>10 
Sands and lami- 
nated clays - 6 
Ironstone, ferru- 
ginous and 
sandy rock - 14 
Upper Lias - Blue clay. 
A well at Pits Hills Farm proved 
99 feet of stone, the bottom-bed 
being oolitic. In order to examine 
the strata I was let down the well, 
but could not make many obser- 
vations, and was plunged into a 
foot or two of water at the bottom. 
About half-way down the stone 
contained scattered oolitic grains. 
At Haydor Lane 96 feet of rock 
was penetrated ; and at Silk Wil- 
loughby 104 feet of the Lincoln- 
shire Limestone was proved in a 
boring. 
The beds beneath the freestone 
have been exposed in the railway- 
cutting and adjoining quarry 
west of Ancaster station. The 
beds yield some material employed 
* See also Brodie, Proc. Cottesw. Club, vol. i. p. 54; Jukes-Browne, Geol. S.W. 
Iiincolnshire, pp. 51, 58, &c. 
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