Taking advantage of a recent overhaul of the typewriter on
which the B.B. is typed, we have had some cryptic characters added to the
keyboard so that it is now possible, amongst other things, to type phrases like
‘speleological manoeuvres’ and similar gems of the English language.  It also opens up a whole new field for
original spelling mistakes, a subject for which the B.B. is noted.

Once again, we have twelve pages.  At one time, there was a ‘queue’ to join
before stuff could be considered for publication.  This has now vanished, and so the odd article
would not come amiss.

Whitsun Trip to

Cornwall.

Owing to the fantastic success of the Easter trip to this
foreign land, and in spite of the damage done to vehicles, the trip is to be
repeated at Whitsun.  Anyone who is
interested should get in touch with any of the Belfry Regulars.

DON’T FORGET THE BARBECUE IS ON JUNE 16

Cuthbert’s Geology

(Extracted from a letter to B.M. Ellis from D.C. Ford )

When I wrote up the geology of St. Cuthbert’s Swallet for
Caving Report No. 7, I’d not finished work on it and so have a certain amount
of revision of the ideas you’ve published. The controlling fault –
Lake -Chamber
to the Duck – is not the Stock Hill Fault mentioned in the geological survey,
but one sub-parallel to it to the west. It is probably in the same system. If this St. Cuthbert’s fault be extended south east of the duck (bearing
in mind that it might not, in fact, extend any further) it passes through
Hunters Hole more or less parallel to the principal alignment of the lower
cave, and about fifty feet south of it. Interesting.

The controlling bedding planes in Catgut (above T-Junction)
are not within the twenty foot plane of the Rabbit Warren as I wrote, but lie
ten and thirty feet below (two different bedding planes).  The extension then runs through higher beds
to get on to the main line, so to speak, at the Sewer bedding plane.  This performance is not typical of Mendip
phreatic behaviour and is almost non-union activity.

The main water supply during stages 1 and 2 of my sequence
of development came; it emerges, from the Rocky Boulder area.  This should “go” much more than it has done,
back up to the surface.  However, I won’t
guarantee that it is not (a) solidly choked, (b) collapsed anyway.

At present I am working on the south eastern parts of the
cave and wondering about possible ways on, barring the sump.  It doesn’t look very good because every bit
of passage plays a part in feeding into the Lake-Gour rift.  Nothing seems to bypass it higher up and the
best bets are in the rift itself.  One
never sees the floor of the rift.  This
is buried to a depth that could run into many tens of feet locally and the way
on could be down it somewhere.    So get
digging!

Afterglow

by M.J. Baker.

Recently it has been demonstrated that stalagmites and
stalactites give off a green glow after being subjected to the light from
flashbulbs.

This was first noticed when photographing formations, and a
flashgun had been placed behind a stalagmite pillar and fired.  For a second or two, the pillar gave off a
green glow.  This ‘afterglow’ has since
been photographed successfully, although first attempts produced a pink glow
due to incorrect exposure.

Since then, observations have been made on other specimens
using ultra violet light.  Stalagmite
consists of Calcium Carbonate (CaCO₃) usually in the form of calcite,
or more rarely, aragonite.

The first fact that we note, was that, although calcite in
the form of stalagmite from Balch’s Hole and Pen Park Hole gave a strong glow,
a perfect calcite crystal (Iceland Spar) gave a negative result.  Also calcite crystals in Carboniferous
limestone that had not come from a cave did not produce any, ‘afterglow’.  This suggests that the afterglow was not due
to the calcite, but to some other element that had been carried in solution by
percolating water from the surface and precipitated at the same time.

This was supported when it was found that ‘fur’ coating the
inside of a kettle or hot water pipe also produced an afterglow.  Most pure salts are not phosphorescent but
salts of Calcium, Strontium, Barium and Zinc gave positive results and it seems
that it must be due to the traces of heavy metals such as Manganese, Lead or
Copper or Silver.

Note.  Phosphorescence
of Calcium Nitrate was recorded as far back as 1674 by
Baldwin.

Editor’s
Note;    I personally find Mike’s article
very interesting as I had noticed this phenomena shortly after flashbulbs came
onto the market, but thought it only worked if you had extremely clean
stal.     This was what led me to try a
flashbulb against the ‘bank’ at the top of the second pitch in Balch’s
Hole  (when it was still clean!) and
later to expend a few unwanted white flashbulbs showing this to other
photographers on the stal pillar in erratic Passage.  I believe that John Eatough subjected some
stal to U.V. radiation and got negative results, thus suggesting that the
afterglow was due to phosphorescence rather than fluorescence.  I was wondering how Mike’s observations were
made with U.V. light.  If he obtained
‘afterglow’ only or if he obtained a visible glow while the U.V. source was
illuminating the specimen.  Possibly both
phenomena play a part here.  Perhaps we
shall hear further in a later B.B.

*****************************************

Have you paid your sub yet? You may not get the B.B. in future if you haven’t!

Notes on the possibility of Cave Art in Britain

by K.S. Gardner.

In any subject such as this, one must first accept or
tabulate certain points which are, in the considered opinion of science,
regarded as facts.  The facts in this
case are that on the walls of the great caverns of south western Europe can be
seen frescoes of engraved and painted scenes of animal life which are accepted
as being of Aurignacian and Magdalenian origin; that is, of cultural phases during
the Wurm glaciation.  It is agreed that
the purpose of this art was of a magico-religious rather than of a decorative
nature, and was based on the theory that, if one possessed the reproduction of
a certain creature, one also possessed the power of life and death over it in
the chase.  This idea has survived among
more primitive tribes today, and indeed was very popular among the practisers
of black magic in the European communities of several centuries ago.

In company with the static murals, we sometimes find large
models of animals in clay, sometimes models which had borne real heads and
possibly been draped in skins to simulate the real creature at some ritual
performance.  With the later, Magdalenian
culture, we get many fine examples of “mobile art”, carvings or
engravings on bone, ivory or stone.

A fairly common reproduction which has a great significance
with regard to the purpose of this art is that of a human figure masked and
draped in skins and interpreted as le sorcereur or the officiating witch
doctor.

As already stated, these great prehistoric academies are
centred in S.W. France and
Spain
at such places as Les Eyzies in the
Dordogne
where there must have been a comparatively considerable population during the
period in question.  The people who
carried out these works were those whose different methods of working flint
have enabled archaeologists to classify them into the two different groups or
cultures of the Aurignacian and the Magdalenian.

How then does

Great Britain fit into the picture? 
France
and

England
were one land in those days so why should there be art in one country and not
in the other?  It is only fair to say at
this point that the North of France appears to be as barren of cave art as is
England, but that the writer knows of no caves
personally north of the

Fontainbleu
Forest.  Art has been found almost as far north as
this at Ancy-sur-Cure in Avallon.

The local British flint cultures, whilst they are different
from the Aurignacian, Gravettian and Magdalenian of Central France, would
appear to be paronymous with them and there is nothing to suggest why, if an
apparently conservative, people retained the backbone of their material
cultures, they should forsake the religious cultures which one might expect to
be the last thing to change.

Ossiferous objects such as harpoons, tallies and
batons-de-commandment from Cheddar or Burrington in the Mendip show very strong
links with the Magdalenian and are again suggestive of at least contact with
the art conscious southern civilization. Articles from Cresswell Crags near the Derbyshire-Nottinghamshire border
go even, further and show definite signs of magico-religious activities.  This latter site is typical of the British
local adaptation of the southern flint cultures and the name Cresswellian has
been applied to similar flint assemblages throughout the country.  Several fragments of bone have been
discovered there bearing engravings of reindeer, horse, bison and rhino (?) but
the most significant is the rib of a reindeer with a masked human figure on it
closely resembling the sorcerers of cave paintings.  These bones admittedly are not typical of
British cave sites, having come from the lower level of the cave, but they do
strongly suggest the presence of believers in the hunting rites.

Supposing that art existed once here if of course no proof
that it exists now.  Deterioration takes
place through the centuries due to the action of air currents; flaking of stone
etc and even
Lascaux with its magnificent
colour can show us indistinguishable blurs of long faded frescoes.  The greater rate of deposition of French
stalagmite may give a protective cover to the works before they have a chance
to fade whereas anything here may have disappeared before such a protective
layer could form.  Let us also remember
that for hundreds of years, antiquarians, students and the public hordes viewed
Stonehenge in full daylight and it was only a
chance that enabled Richard Atkinson to recognize carvings on some of the
stones in 1952.  How many miles of underground
walls will have to be searched by so few cavers in nigh on complete darkness
before the blurred remains of an engraving or a faded painting would show up on
the dark, rough rock?

Where then would it be likely to be?  Supposing the Cresswellians were believers or
the Aurignacian few practised it here? To judge by continental sites – deep underground far from the entrance
or in some almost inaccessible chamber! It is unlikely to be in a cave used as an occupation site but rather in
a nearby unoccupied one.  At Cheddar, one
might be tempted to suggest Great Cone’s Hole as the temple for the Gough’s
hunter inhabitants.

It has been suggested that, as the estimated population of
this tundra country was then about two hundred, there could not have been the
organised religion of the French forests. True, one should not expect the dozens of sites which the French and
Spanish have – perhaps only one in Derbyshire and one on Mendip but if today a
dozen Christians went to the North Pole, would they leave their belief in God
behind them?  A small population is not
the reason for the absence of art.

It has been stated that in the barren tundra of this
peninsular, wild game would be scarce and life too much of a struggle to bother
with art.  If it was considered essential
in the well stocked regions of S.W. France to cast spells in order to catch the
elusive and required beast, how much more important must it have been here to
employ magic to ensure victory over the same creature even more elusive and
even more essentially required!  It is
always in man’s darkest hour that he turns most to his religion.

Whilst a great deal of the French art is of a hunting
nature, there is a certain amount apparently devoted to the preservation of
life – pictures of pregnant cows etc – and it might well be that the French had
some control over herds and thought they ensured productivity by this
method.  It may be safe to assume that
this type of art would not be practised here as the presumably less pleasant
conditions towards the close of the last Ice Age enforced a more nomadic
hunting life upon the occupants.

Well then, will art ever be found in the
British
Isles or has it been found already and forgotten?  Were the red marks found in Bacon Hole, Gower
really natural or were they the fading vestiges of a forgotten age?  This site certainly has a strong similarity
with the Grotte-Temples.  It was not, as
far as we know, occupied as early as the upper Palaeolithic, though an ideal
site.  If Aurignacian man lived and died
on Gower and the markings are hidden in the innermost recess, then the fact
that the red bands vary from period to period in size and position may
conceivably be due to the action of damp or some other phenomenon, as similar
movement is not unknown in ecclesiastical murals.  It is a pity either way that the chamber
housing them was not effectively protected as the walls are certainly covered
with “art” now, and any scientific study will be seriously impaired
by the collection of candle smoke drawings and engravings left by modern
vandals.

Perhaps the Cave Preservation Society would like to take a
scrubbing brush along there one day.

A New Way off Yr Elen

by “Kangy”

One of the troubles with Yr Elen in the Carneddau in
North Wales is that it is stated to be 3,152 ft. which
means that it is one of the Welsh Three Thousands and therefore has to be
done.  Another trouble is that it is the
highest point of a spur which inconveniently branches normal to the line of the
great Carneddau summits.  Tiresome, very!

Routes worked out for a traverse of the Welsh Three
Thousands are concerned with the least loss of height and it is found best to
retrace the route back to Carnedd Llewellyn once Yr Slen summit has been
attained.  This is all very well if a
straight thrash around the

Fourteen
Peaks is under way, but
it has always irked me to have to walk back towards Llewellyn and not go
on.  A mate and I were camping by Craig
Yr Isfa and it was the sort of day and time of year that combined to give
bright but cold and blustery weather.  A
fine excuse for a walk!  Eventually we
found ourselves heads down and panting on Yr Elen.  We ate chocolate and regretted that the wind
would fight against us all the way back to Llewellyn.  The view from the summit was extensive and
included Ysgolion Duon (the Black Ladders) with the summit of Carnedd Dafydd to
the right and above.  We were interested
in the Black Ladders because of the climbs on it and made for a lower point to
get a better view of it.  It occurred to
us here that an interesting variation would be to descend into Cwm Llafar and
make our way on to Carnedd Dafydd somehow. We were not equipped for rock climbing and so a requirement of any route
was to be a certain lack of excitement. It was obvious that we could easily climb out of the cwm onto Dafydd by
saddles at the head of the cwm or to the west of Dafydd, and so we started
down.

As often happens, the closer we came to Dafydd, the clearer
became the topography.  The Black Ladders
remained black and un-ladderish, but the unpromising slag heap that formed the
North East face sorted itself out and a possible route appeared as a ridge
running directly up to the summit of Dafydd. The doubtful things about it were that it started above a steep rock
face, and where it joined the final slopes of the summit it became steep and
narrow.  A way around the rock face was
up a steep scree slope on its felt flank. This was not as bad as it looked, as it was large scree and twenty
minutes or so of scrambling was all that was necessary to get us on to the
satisfyingly sharp crest of the ridge. Easy going and even a pinnacle led to the steeper rocks.  These proved to be no more than a
scramble.  The particular pleasure we got
from the route is that there is nothing artificial about it end the ridge
finishes on the summit.  A proper route.

We saw from the 2.5″ O.S. map later that the ridge is
called Crib Lem and that the rock face is Llech Ddu.  They lie approximately S.S.W. from Yr
Hen.  The lowest point reached in Cwm
Llafar is about 2,000 ft, so the loss in height is not great and a small price
to pay for a good walk.

Map References:
            Sheet 107 (1953)   
            Yr Elen                673652
            Carnedd Dafydd  663631

Some Comments on the Recent Surveying Articles

by R.D.Stenner.

Bryan‘s
suggested new system of grading surveys is good in many ways, but there is a
point I am not happy about.

Errors in measuring vertical angles may not make much
difference on a plan, but they will make a big difference to a section and to
the altitude of a station, I think that the care in measurement of vertical
angles needs much more emphasis and would like to elaborate.

A cave survey should be a representation of the cave in
three dimensions, and the vertical dimension should be measured with the same
degree of accuracy as the two horizontal dimensions.  To measure vertical angles with a clinometer
to the same degree of accuracy as is possible with a hand held oil-filled
prismatic compass, the clinometer should be tripod mounted.  The prismatic compass does not have to be
tripod mounted to be read to * or – 0.5°, but clinometers do.

Turning now to Alfie’s article, the ideal survey should try
to show a caver exactly what the cave is like. Surveys of caves should be parallel with surface maps.  The basis is an outline, with cave height,
floor gradients and changes of altitude and on this foundation should be shown
the nature of the floor, exact position and nature of formations, water (still
or running) dumps of food, carbide and spent carbide (if any) position of
rawlbolts and fixed wires (with date of installation and details of
maintenance) actual route taken where not obvious, parts of cave taped off,
details of entrance and access, and perhaps a lot more things which I can’t
bring to mind.

On this basic foundation, specialist surveys can be
overprinted – a parallel with specialist surface maps. Geological and
Biological overprints come to mind here.

The basic survey, as detailed as I would hope, would be as
interesting to explore as the cave itself (and much less effort!) but there is
a real use which Alfie overlooked – that is photography.

Photography in large chambers and in particular the
photography of large, remote formations is often hazardous because of the
impossibility of measuring the distance between the flashgun and the
subject.  The usual rangefinders are
useless, so the only answers are a bit of surveying or to make a guess.  A good survey should give the information
needed.

Competitions!

Time is now getting on! Over half a year has gone by since the last Annual Dinner and the time
left for taking that prize winning picture is getting shorter all the
time.  We hope to be publishing a
complete set of rules for both competitions in the next B.B.

*****************************************

Club members are welcome at the Archaeological site at
Cheddar – contact Sett for details or just turn up.

Book Review

by Jim Giles.

Some

Smaller
Mendip
Caves,
Volume 1 – R.D. Stenner and others.  B.E.C. Caving Report No 6.  Edited by B.M. Ellis.  Price 2/6.

In this report, several club
members have pooled their resources to produce a report dealing with caves
which, due to their apparent insignificance, have not been rewarded with the
close attention and glamour of the larger Mendip systems.  Information pertaining to several
semi-successful digs is also included in the report both for record purposes
and in the hope that it will be of some assistance to future ‘cave hunters’.

Shepton Mallet Caving
Club Journal – Series 3 Number 2. Edited by F.J. Davies.  Price  1/3.

Once again the Shepton have
produced a journal devoted to reports of original work in the caving world.

In this edition, K.R. Dawe gives
a full account of the diving operation in Swildons Hole which is well backed up
by a description by J.M. Boone of his air breathing diving set ‘Nyphargus’
which was used to great effect at the same time.

Other articles in this journal
give more details of the Trouble Series of Swildons and the Carricknacoppan caves
of

Fermanagh,
Northern Ireland.

Subterranean
Climbers.  Twelve Years in the
world’s deepest chasm. – Pierre Chevalier. Faber & Faber.       Price   16/-.

A superb and unforgettable book
telling of Pierre Chevalier’s twelve year battle with nature in linking the
Trou de Glaz and the Guiers Morts grotto. No description could possibly do this book justice.

*****************************************

The Belfry Bulletin. Secretary. R.J. Bagshaw, 699,

Wells Rd, Knowle,

Bristol 4.
Bristol Editor, S.J. Collins, 33,
Richmond
Terrace,
Clifton,

Bristol 8.