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English Church Architecture.
WILBURTON, St. Peter
(TL 479 750),
CAMBRIDGESHIRE.
(Bedrock:
Lower Cretaceous, Lower Greensand Group.)
A church
situated on the Lower Greensand outcrop, built largely of ironstone.
Before the advent of the canals and
(especially) the railways, the transport of heavy goods overland frequently cost
more than the goods did themselves. Builders, therefore, used vernacular
materials whenever possible, preferably sourced within a mile or two of the
site. Mediaeval stone buildings consequently reflect the underlying
geology and churches in particular provide an approximate geological map of
Britain, which is naturally most faithful in areas of less complexity.
This general principle is revealed to good effect along the Lower Greensand
ridge which rises along the western edge of the Lower Cretaceous outcrop of
south and east England, which is itself very narrow in the southeast/northwest
direction, yet extensive and continuous from northeast to southwest, as seen
below. Moreover, the rubble building stones to which the Lower
Greensand gives rise, which are generally known as carstone (chiefly in Norfolk)
or ironstone, are a very distinctive, liquorice-brown colour, which
is difficult to miss. Drivers heading northwest from East Anglia to the
Midlands along one of the quieter roads that passes through intermediate
villages, will suddenly notice one or two village churches (probably no more)
that show they are crossing this outcrop, while someone with a will to do so,
might set out from Hunstanton on the north Norfolk coast and, except across the
Fens, pick his or her way southwest, at least as far as Leighton Buzzrd on the
southern border of Bedfordshire, and encounter one such church after another.
The churches named on the map below, all of which are represented on this
web-site, serve to illustrate this.
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The Lower Cretaceous Rocks of
Eastern England, laid down 146-97 Ma.

1 = Heacham (Norfolk); 2 = Castle Rising (Norfolk);
3 = Wilburton (Cambridgeshire); 4 = Cottenham (Cambridgeshire);
5 = Great Gransden (Cambridgeshire); 6 = Bourn
(Cambridgeshire); 7 = Gamlingay (Cambridgeshire);
8 =
Everton (CENTRAL Bedfordshire); 9 = Blunham (CENTRAL Bedfordshire); 10 = Eyeworth
(CENTRAL Bedfordshire);
11 = Biggleswade (CENTRAL Bedfordshire); 12 =
Edworth (CENTRAL Bedfordshire);
13 =
HOUGHTON CONQUEST (CENTRAL
BEDFORDSHIRE); 14 = LOWER GRAVENHURST
(CENTRAL
BEDFORDSHIRE).
This is
another church built chiefly of ironstone rubble, whose architectural
story is essentially one of the fifteenth century reconstruction
of a late thirteenth century building of similar size. Externally,
it is much restored, however, so that today it is dependent for its
effect on its two-storeyed S. porch - not, pace Pevsner, a N.
porch (The Buildings of England: Cambridgeshire, Harmondsworth,
Penguin, 1970, pp. 485-486) - and its little W. tower. which rises in three
stages supported by angle buttresses to the tall first stage and with a
deeply projecting stair turret at the eastern end of the S. wall,
which provides access both to the tower bell-stage and upper room
over the porch. The church consists besides of a nave with a N.
transept, and a chancel with a N. organ chamber and vestry, and is lit
by Perpendicular-style windows that are renewed almost everywhere. The
transept, indeed, is entirely Victorian (of 1868) apart from the N. window,
which is old work re-set, but the principal features of the porch are
also mediaeval,
including the outer doorway composed of two orders carrying wave
mouldings, the inner doorway supported on semi-octagonal responds with
castellated capitals, and the square-headed S. window to the upper
storey, sitting above a string course and a cinquefoil-cusped blocked niche.
The
church interior is distinguished by wide, two-centred blank arches around
the windows, divided by groups of narrow shafts (as seen in the
photograph, right). There are three
bays on the north side of the nave, between the W. wall and the
transept, and four bays to the south (of which the westernmost surrounds
the door). Three further, similar bays each side of the chancel
show the present nave and chancel were erected in a single phase. That
this was nevertheless a reconstruction of an earlier church is demonstrated by
the tower and chancel arches, which have late thirteenth century or earliest
fourteenth century details, showing the nave at that time was the same
length it is now. The chancel
windows seem to be largely original fifteenth century work
inside, and the westernmost N. window
(illustrated right), which now looks into the
organ chamber, appears wholly unrestored, showing the design of the
windows was preserved in the Victorian
restoration. In the eastern corners of the chancel, tall
cinquefoil-cusped niches set diagonally, once presumably held statues.
The low-pitched chancel roof of couple construction is contemporary, but
the attractive, still lower pitched nave roof
(viewed left, looking east) is better and has
cambered tie beams with brattishing on top, supported by arched braces
with open tracery in the spandrels.
Finally, a note should be
added on a few furnishings and fittings. The nave retains faint
traces of wall paintings in red and black to the north, one of which
appears to depict two bishops. The rood screen is restored
Perpendicular work up as far as the new loft, with a dado with applied
alternate tracery and carved dragons in the spandrels, and
elaborately-cusped open tracery above. The communion rail with
barley-sugar balusters is probably Stuart.
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