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APSLEY GUISE,
BEDS.
When the coprolite seam was found
above the Oxford clay along the lower slopes of the Lower Greensand ridge in
this area it was not long before the manure
manufacturers moved in and hired men to extract them. They had
been worked in Brickhill and Ampthill from 1873
so it was probably about this time, when the same seam
was found to outcrop in Apsley Guise, that
it was similarly
extracted. As yet,
no documentation reveals who
was responsible for the workings, but the first geological map, (O.S. 6 inch Beds. 20SE 1884) showed at
the junction of
the Lower Greensand with
the Oxford Clay
an old gravel
pit, ”perhaps coprolitic”,
between the Rookery and the Radwell Pit. There was
also a tramway leading from
it to the Bedford branch Railway
to the north which suggests it was quite
a major operation.
There was also a
stretch of ”Coprolites• marked on the map just to the northwest of The Manor
Farm and Crawley Farm
and another pit
with a mention
of coprolites was located at the northwest corner of the crossroads,
just south of Crawley Mill Farm.
This may well have been related to
the fact
that John Bennett Lawes, the
man who made his fortune out of patenting and
producing superphosphate out of these
coprolites had set up in
1876 the Experimental
Farm in nearby
Woburn with the
assistance of the analytical chemist, Augustus Voelcker. In
1872 he had been given three
hundred thousand pounds for his manure company and, after
setting up the Rothamsted Experimental
Research station, may well have wanted to process the
local deposits at the ”den• in his barn to compare the
efficacy of the superphosphate produced from these local deposits with those
from other areas. They experimented with different
manures on the sandy soils of Crawley
Farm mentioned above
and compared the results
with those tested
on the clayey soils of his Rothamsted
estate. Although no records confirm it, it seems likely that some
of the local fossils
were dug up for use in their experiments and that the local
farmer and his
labourers were responsible
for the digging. (See author's
account of the industry for Rothamsted)
COPROLITE DIGGINGS IN APSLEY GUISE,
HUSBORNE CRAWLEY AND RIDGMONT
In late 1876, the Royal
Agricultural Society took on Lawes and Gilbert as consultants. The ninth Duke
of Bedford allowed them to use part of the lighter sandier soils on his estate
at Apsley Guise to investigate the accuracy of Lawes'
figures for residual manurial value of different
types of animal feeding stuffs. Thus the Woburn Experimental Station was set up
(TL965362). This work was topical because, under the provisions of the Agricultural
Holdings Act of 1875, tenants could be compensated for improvements they had
made to the soil, like the addition of fertilisers, whose efficacy had not been
exhausted.
The late-19th century maps
of this area show a considerable number of sand and clay pits. They were
probably developed at the same time as the coprolite diggings when demand for
building materials was at its height. Many estates and churches were renovated
during the early 1870s and those towns on the railway expanded considerably
with new industries and housing. An old gravel pit between the Rookery and the Radwell Pit in Apsley Guise at the
junction of the Lower Greensand with the Oxford Clay was noted on A. C. Cameron's
first 6-inch geological map as "perhaps coprolitic" (TL 932363).
Whether it was worked is
uncertain but a small coprolite pit was marked between Woburn Sands and Husborne Crawley. It was on the eastern side of the road,
opposite the public house on the crest of the Greensand Ridge (TL 961357). No
documentation related to it has come to light. The word COPROLITES" was
written over a stretch of land on the 50 ft. (16 m.) contour less than an
eighth of a mile (200 m.) northwest of Manor Farm and Crawley Farm - the centre
of the Research programme! TL 950365). Another pit
with a mention of coprolites was located at the northwest corner of the crossroads,
about 200 yards (66 m.) southwest of Crawley Mill Farm (TL 962359). A tramway
led to the Bedford Branch of the London and North Western Railway to the north.
Ridgmont Station was only a mile (1.6 km.) away. It
is possible that Lawes won contracts from local landowners and experimented with
them on the fields at the Experimental Station.
A report on the remaining
phosphate deposits during the Second World War referred to "coprolite
diggings" on the northern slopes of the Greensand Ridge in Apsley Guise and further east in Ridgmont.
Unfortunately, documentation for these workings has not come to light. (Town
and Country News, 'Aiding British Agriculture', Sep. 28th 1934, pp.3-4; 6 inch
Beds. 21 NW; 20SE 1889; Oakley, op.cit. fig. 3)
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