Content-length: 44338 Content-Type: text/html; charset=UTF-8 #24 The National Monuments Record Archive Search


The National Monuments Record Archive Search



Readers will recall that in our last issue I reported on my proposed visit to the National Monuments Record at Swindon. The N.M.R. is the public archive of the Royal Commission on the Historical Monuments of England and it is housed in an old railway siding next to the Great Western Railway. The N.M.R. is funded by the Department of National Heritage and contains over three million aerial photographs from a variety of sources.

Since the early 1980s some crop circle researchers have raised the issue of alleged historical records of crop circles in an attempt to justify their claim that some crop circles are the result of a rare "natural" phenomenon. Unfortunately much of the historical evidence is poorly researched and documented. A further problem concerns the fact that many of the historical cases are based on retrospectively-made accounts rather than contemporary accounts made at the time. For these reasons skeptics of a "natural" explanation have sought to dismiss the historical record.

One important class of evidence for historical records of crop circles involves photographic evidence. Unfortunately the handful of photographs which have surfaced so far have disappointed the skeptics, who claim that these photographs don't show the same thing as modern sharp-edged crop circles.

In previous issues The Crop Watcher has detailed several hundred historical accounts of phenomena which sound like crop circles (for example see CW14 and CW21). This evidence includes the 81 "unexplained ground markings" listed in the UFO Research Manitoba database which predate 1975, the year in which Doug Bower and Dave Chorley claim to have "invented" the crop circle phenomenon. There are also historical accounts of unusual circular markings from nations all over the world. It is perhaps significant that like most of the eye witness accounts which have been reported many of these historical cases involved relatively simple patterns such as lone singles and doublets. One excellent example of a contemporary account is the double rings at Evenlode, Gloucestershire (1960), which were reported in the local press almost immediately. Unfortunately it has not proved possible to locate photographs of the Evenlode rings, although your Editor has seen the BUFORA case report written by John Llewellyn (who emigrated to Canada many years ago) and an unsuccessful media appeal for photographs of this event was made by Gloucestershire Earth Mysteries on our behalf. Regrettably there have been few concerted attempts to track down further evidence of the pre Doug and Dave phenomenon discussed throughout the crop circle literature. It is for this reason that my visit to the N.M.R. was well overdue.

The National Monuments Record Centre

During my preparation for my archive search I learnt that the earliest aerial photographs in the N.M.R. date back to 1903. According to the N.M.R.'s publicity material the photographic record covers "every inch of England". Most of the images are black and white but some of the more recent photographs are in colour.

The N.M.R. holds two collections of aerial photographs - the specialist collection of oblique photographs and the vertical collection (which was transferred from Acton in West London in June 1994). Many of these photographs were taken by the Ordnance Survey (for surveying purposes), the Royal Air Force and by commercial companies (such as Meridian Airmaps Ltd and Fairey Surveys).

In 1992 the Wessex Skeptics visited the N.M.R. at Swindon and reported finding no aerial photographs of crop circles. Martin Hempstead supplied the following statement for publication in CW9 :

"You suggest that we have prematurely concluded from our examination of aerial archaeological photographs that crop circles are entirely a post-1979 phenomenon. In fact, although we saw no patterns predating 1980, we have not drawn firm conclusions. This is because our investigation was fairly limited, being based only on brief examination of several hundred photos of two areas that were crop-circle rich in the 1980s. We are planning a much more thorough examination of the archives, which offers the possibility of pinning the phenomenon down quantitatively. We were rather more impressed by the testimony of the aerial archaeologists. We received letters from six, and polled three more by phone; these three contacted about 50 of their colleagues in Britain and the continent. Their information supported the hypothesis that crop circles are a recent phenomenon, unrepresented in the aerial archaeological record prior to about 1980. This is remarkable when one considers that these people have the job of detecting features similar in size and shape to crop circles, and would be failing if they did not take note of them, if only to eliminate them from their research" (letter dated 8 November 1991).

In another letter (dated 7 July 1992) Chris Nash of the Wessex Skeptics reported that:

"Our own negative findings from sources in this country and abroad, such as the Centre Interdisciplinaire de Recherche Aeriennes in Brussels, certainly don't preclude your finding photographs or reports [of crop circles] from any time in the past. But of course clear evidence of old crop circles would still not rule out a simple man-made explanation".

Search Strategy

As I was searching for historical photographs of crop circles I decided to concentrate not just on circle-rich locations like Cheesefoot Head and Westbury, but also on locations where we had received anecdotal reports of crop circles prior to the 1980s. I also included the site of Melvyn Bell's eye witness account in 1983 (site 4). I prioritised my search into two lists - those where I had specific locations or dates (list A) and those where I had only generalised locations and dates (list B). These are detailed in Table 1 on page 6.

The N.M.R. responded to my request by conducting what is called a coversearch. Their computerised database can select photographs based on the date and Ordnance Survey grid reference supplied. I requested that I only examine photographs taken during late Spring, the summer, or early autumn, but the coversearch is not sophisticated enough to select photographs by season so I was supplied with a list of photographs taken at any time during the year.

Table 2 on page 6 details the results of the coversearch. The N.M.R. located 265 photographs at 10 of the 12 requested sites, plus a hundred other photographs which were not available. I was supplied with 16 computer printouts detailing the date each photograph was taken, the height of the aircraft, the scale (vertical collection only) and other details. On the vertical collection photographs were categorised by the quality of the photograph, ie A for excellent, B where cloud cover/poor photographic quality or haze/air pollution reduces the quality of the photograph, and C where there was considerable cloud cover or poor quality imagery. All the plates I inspected were black and white.

Results


The first photographs I inspected immediately highlighted all the problems faced by aerial archaeologists. From 2,000 feet it is easy to see road markings and people, but from 60,000 feet entire fields seem like tiny spots on a checkerboard landscape. I found it difficult to use the stereoscope provided (I think it was faulty) and I was working under pressure as the Sightings TV crew from Los Angeles were coming to film me in less than five hours - what would I say if I didn't find anything ?

I worked through the photographs in site number order, beginning with site number 1 - Evenlode. Unfortunately the N.M.R. could not locate their aerial photograph of Evenlode taken on 19th August 1960 (about two months after the double rings appeared) so my search of this particular location was bound to be fruitless. Using a borrowed magnifying glass and ruler I searched slowly across the image. Unfortunately I've never visited Evenlode and have no idea where Bill Edward's farm is compared with the village itself ! However, I'm fortunate in having a near photographic memory when it comes to maps, so I recalled the fact that the village was to the east of the railway line and river. Here are my notes for these first photographs :

Photo FSL (Fairey Surveys Ltd) 6125, library number 1118A, taken on June 1st 1961 with a scale of 1:8,000

"Too high ! Sun [directly] overhead. Lots of marks which might be crop circles but [they are] too small to tell. "

Photo 82/1463, library number 1749, taken on August 14th 1956 at a scale of 1: 20,000

"2 small [circular] depressions close to 4294 [grid reference in mms from bottom left hand corner of photo]. 2 large circular features by trees to south of large village on left at reference 4638 [in a] cultivated field - no chalk in bottom".

These two comments highlight the fact that there are many potential sources of circular marks on aerial photographs and that it is not always easy to tell what these circular images are from a height of 10,000 feet. I saw many circular marks in the corners of fields or near gates, which I interpreted as the marks left by tractors turning. There were also circular areas with small black dots in the middle - perhaps these represented some kind of agricultural activity ?

Despite these problems I ploughed on, making notes of anything worthy of comment. On the Eastwood photos it was easy to see the school and estate shown in Andy Collins' map reproduced in CW17. As the photograph was taken from less than 5,000 feet I could see people, cars and even the paint marks on the school playing field and road markings ! In the middle of the adjacent field I could see a long mass of lodged crop with (perhaps) multiple mini swirls. These seemed to follow a stream or (more likely) the course of a dry valley where the water table lay close to the surface. There was no sign of the large single reported by Gwen Brooker but this may be because the photographs were taken in the wrong year or the location was slightly wrong. Who knows ?

The Maiden Bradleigh photos displayed a number of curious circular markings. On photo ST 81 38 / 1 (NMR 821 frame 363) there are several "ambiguous circular markings" at grid references 113031, 017183 and on the extreme right hand edge of the photo. These were also evident on frames 364 and 365, taken a fraction of a second later. On frame 365 there is also a large dark crop mark, some tractor turning marks and some "small feint circles" at 5574. Again this is not to say that these were definitely crop circles, merely that odd circular markings were in evidence on the prints.

On the vertical collection are some curious circles with white bottoms taken near Maiden Bradley - the location claimed by Mrs Christine Dutton to have regularly produced crop circles and rings on her husband's farm between 1914 and 1958. On photo OS/65114 (library number 10886), taken on 20 June 1965, there is a large circle with a white base. On photo OS/63083 (library number 11488), frame 4053, taken on 2 June 1963, there is another circle at 080057. On frame 4055 there is a slightly oval-shaped circular marking with a black dot in the middle. Goodness knows what these circles are !

One of the problems with the interpretation of these photographs is that on some of the older photographs the emulsion seems to be potted with marks. These too could be misinterpreted as crop circles when, in fact, they are nothing of the sort. In addition many of the photographs were taken by aerial archaeologists for aerial archaeologists, so many exhibit linear and circular features which are very clearly crop marks. I felt pretty confident that I could distinguish crop marks from other circular markings, but who knows what the ancients did. Perhaps some circular shaped marks on aerial photographs are the result of Roman latrines ?

All of this is really frustrating because at the end of the day the aerial photographic evidence is not quite the objective tool I had hoped it to be. A degree of personal judgement is still required.

Breakthrough ?

These issues are highlighted by my discovery of photo 58/2513 (library number 1843), which was taken on 18th July 1958 above Pepperbox Hill, Whiteparish, Wiltshire (OSGR SU 210250). This vertical photograph displays at least six circular traces. Unfortunately the original photograph contained too little contrast for it to be scanned and reproduced in The Crop Watcher. However, the scale drawing on the front cover of this issue illustrates the disposition of five of the six circular images on the top left hand corner of the original print.

At A, B and C are three circles with whitish centres. Circle A appears to be approximately 22 metres in diameter whilst circle B is smaller (c 15 metres) and circle C smaller still (c 12 metres). In all three (particularly circles A and C) there are darker areas within the whitish background. When I first saw these circles I was convinced that this was a major breakthrough. My reason for doing so was because on the 9th July 1987 farmer Graham Sparkes insisted to Terence Meaden, Colin Andrews and myself that in this very field he and his father had seen crop circles for most of the previous "28" summers (Sparkes' claim was made at point G). My belief that these images represented crop circles was also strengthened by the fact that identical images did not appear on any of the other aerial photographs of the Pepperbox Hill location that I inspected (dating from 1946 to 1980).

When I first saw photo 58/2513 the images of circles A, B and C were very small - about 0.25 mm across - so the interior of these circles looked much darker than they do on the enlargement produced by the N.M.R., where they appear quite lightish. When Terence Meaden examined Professor J.K. St. Joseph's oblique photograph of the Winterbourne Stoke Bronze Age round barrows he concluded that light coloured circles on aerial photographs are not proof of historical crop circles because the light centres represent the chalk showing through the topsoil and crop.

When I received the N.M.R. enlargement I first noticed circles D and E. These are much fainter than circles A, B and C, and strangely their interiors are the same colour and shade as the surrounding crop. This suggested to me that they are not crop marks as the latter are normally lighter or darker than surrounding crop.

In circle D the circular shape is quite clear and the dark shadow effect of the standing crop can be clearly seen on one side of the circle. In circle E only the darkened rim can be seen on one side. My original opinion was that circles D and E are prime candidates for historic crop circles, as they too are inside the Pepperbox Hill punchbowl. Circle D is actually in the field that Graham Sparkes insisted had produced crop circles during the previous 28 years, whilst circle E was in the next field along. Both circles were in the lee of a steep escarpment some 100 metres high, just as Meaden's atmospheric vortex theory predicts, and both were probably invisible to anyone visiting the Pepperbox monument on top of the hill. If these are not crop circles then what are they and why did Graham Sparkes insist that they were the same phenomenon as the 1987 circles?

At point F on the photograph is some interesting lodging. There are several circular patches which conceivably might be wind swirled crop circles. Two circles display central clumps, the feature reported by Paul Germany in the circles he recalls from East Anglia during the 1930s. Further down on the original photograph is a sixth circular mark which could be interpreted as a ringed single. The circle is positioned very close to the village of Whiteparish but surprisingly doesn't appear in CERES' database of historical crop circles. A number of other white-bottomed circles appear on some of the other prints I examined (eg there is something that resembles a ragged ringed single on photo 106G/LA/292, library number 3706 taken at Cley Hill on 12th May 1945, and another on photo F65 543/RAF/2821, library number 8138, taken on 27th April 1964). So, if crop circles are not represented in the aerial archive record, what are these circles and why did the Wessex Skeptics fail to report them following their archive search of 1991 ?

Professional Opinion

Having completed my archive search I sought some professional opinion. Initially I wrote to Derrick Riley, author of Aerial Archaeology in Britain (Shire Archaeology, 1982), but unfortunately Riley died in 1993. Next I contacted The Wessex Skeptics and they kindly supplied me with the names of three aerial archaeologist. I stumbled across another aerial archaeologist at work ! Unfortunately my attempts to enlarge frame 58/2513 met with repeated and costly failure, so I sent these experts a laser copy of my enlargement.

Rog Palmer and Chris Cox run Air Photo Services in Cambridge and they are Editors of the Aerial Archaeology Research Group Newsletter "AARGnews". They are "archaeological consultants for aerial photographic interpretations, accurate mapping and oblique aerial photography". Their opinion was almost entirely negative:

"None of the marks you have indicated show features similar to the crop circles recorded in recent years. The latter are formed by flattening the crop, usually cereal, to the desired shape. Marks B and C are perhaps the easiest to deal with and give the appearance of reasonably convincing round barrows (burial mounds, most probably of bronze age date). In July these would be visible because the crop would grow more feebly on a chalk mound - even if it was virtually levelled - than on topsoil. It worries me slightly that C seems to be showing more as a disc than a spot, but this does not affect my interpretation. A is less easy to classify because of its disc-like appearance and the sharpness of its outline. It could be another round barrow (the county records should help with A, B and C) but this is one case where I would be happier if I could also see an adjoining frame to assure myself that it was not a processing fault. The squiggles you have drawn near A are almost certainly tractor-made. I can almost convince myself that I can see the two parallel wheel marks in places. Similarly, those to the left all head towards the field entrance, although those towards the top of the frame (south) may show marks of earlier agricultural lynchets - I would need to see more photographs to say anything more definite about those.

D is interesting. What are we seeing ? Here, a stereo pair [of photographs] would definitely be an advantage because, to judge by the shadows D appears to be a slightly sunken disc-shaped feature or a slightly raised ring. If the latter it could mark the location of a disc-barrow - again bronze age but of different form to the round (bowl) barrow, comprising circular ditch and low bank with a central 'nipple' above the primary burial. If it is a sunken feature I would suggest it may show an old marl pit - the chalk is crawling with them. To remind you, what we are seeing in this case appears to be a three dimensional form with the crop growing normally above it - not a form made by flattening crop. Arc E I would write off as a mark on the negative or print. I would also suggest that it is too dark a tone for that particular crop to be capable of producing....

F seems to be a quite unexceptional example of one of the many forms of crop lodging. Your 'circles' (this time really of lowered crop!) would appear to centre on crosses made by successive year's cultivation in different directions - a fairly common farming practice, and visible in other forms in some of the nearby fields....

May I be a little brutal and suggest that when you are examining photographs you keep firmly in mind just what it is you are seeking to identify. I think the example shows that you have been looking primarily for 'circles' but with little consideration as to what those circles are showing. ... Your aim is to detect circles, or other shapes, formed by crop being flattened. You perhaps could help this by trying to find some vertical photographs that show some of the recent examples which may help you to identify some of the 'signals' through which such features show. On these earlier prints, given a degree of direct sunlight, I would expect to detect a 'shadow side' and possible a 'highlight side' to a circular edge and would expect the levelled centre in a cereal field to be showing as a lighter-toned mark than the surrounding normally growing crop (greater reflectance from the stalks than from the plan view of the heads). All of these should be there at whatever stage of ripening (ie from green to yellow).

One of the questions I was asked (I think) by Martin Hempstead was if archaeological photo interpreters would have noticed crop circles when examining photos that pre-date the present outburst of such things. My answer was that we would not be doing our job properly if we had not seen them. In a similar manner to yourself, we will have been searching for breaks in the agricultural pattern - from a circular blob to more involved patterns. Much of the so-called archaeological examination of vertical photos has been done by inexperienced (or non-experienced) personnel who have considerable imagination and have cluttered many of our maps with all sorts if junk. If crop circles had been on these photos they would have found them. In other words, I doubt if any are there."

Susan Smith is an Archaeological Assistant working in the archaeological section of Hampshire County Council Planning Department. Susan told me that the interpretation of aerial photographs was not an "exact" science and that different aerial archaeologists give different interpretations of the same features. This opinion was supported by the other aerial archaeologists I contacted.

Unfortunately Susan Smith has had much less experience in interpreting aerial photographs than Rog Palmer. For this reason she was unsure about all the "circles" on figure 1. She felt that circles A to C were possibly modern in origin, although she suggested that circle A was possibly a ring ditch. Susan Smith's opinion was that circles B and C appear in a field of grass whilst circles A, D, E and F appear in arable crops. There is a footpath running through the fields B, C and D appear in. Circle A caused Susan some concern due to the presence of the curly traces adjacent to the bridleway. Susan was also puzzled by the linear marks that lay to the south of the A36 (shown at the top of the plan on the front cover.

On examining circles D and E Susan was less sure. In her opinion circle D could be the product of an agricultural regime (eg tractor movements). She noted that under a magnifying glass circle D displayed a slight kink. Susan was not convinced that circle D was a ring ditch.

It was interesting to discover that like Rog Palmer Susan Smith was unimpressed with circle E. She suspected that this "circle" was a subconscious trick of the mind (i.e. my mind !) trying to form a circle out of ambiguous visual cues.

Susan Smith confirmed that crop marks can disappear from the aerial photographic record because they are dependent on numerous variables, eg the time of the year the photograph was taken, the type of crop, and whether or not it had been a long dry summer (which favours the appearance of crop marks).

Susan Smith suggested that I contact Wiltshire County Council's Library and Museum Service, as they hold a record of the county's archaeological sites. I was very pleased to receive the following comments from Roy Canham, the County Archaeologist (letter dated 3 November 1994) :

"I have examined the photograph which you kindly provided and can offer the following comments :-

Sites A, B and C -

I think these are non archaeological in origin. Ring ditches and similar monuments do not show up in this way in arable land. The three features are shown with such clarity that I have a suspicion they are marks on the negative.

Sites D and E -

Ring ditches showing in arable are normally fairly simple and these features are complex with areas of light and dark showing. They have the appearance of archaeological earthworks as they would show up in grassland but these are located in arable fields and cannot survive as earthworks. I therefore doubt that they are of archaeological origin.

In relation to your comment about ring ditches not appearing on other photographs, I can confirm that this is very common indeed. Soil moisture conditions appear to play a strong part in the formation of crop marks. Furthermore, I have noted photographs in which a ring ditch will appear as a soil mark in one year and not in another, something which I find hard to explain.

I note the other archaeologists you have written to, and I doubt that we will all concur in our evaluations ! "

Finally I also wrote to Kate Fielden, who edits the Wiltshire Archaeology Magazine, but have not received a reply.

On October 18th I wrote to Dr R.P. Whimster, at the National Monument Record. Dr Whimster kindly agreed to examine photo 58/2513. This is what he has to say (letter dated 20 December 1994) :

"I have at last had an opportunity to look properly at the original of the 1958 print that you have photocopied to me, together with a partly overlapping print from an adjacent photographic run. The results of my observations will, I fear, be rather disappointing.

1. The photographs in question were taken on 18 July 1958. As would be expected at this time of year, most of the fields are occupied either by maturing cereal crops or established grassland. The only significant exceptions are one or two fields that remain as fallow plough-soil, as witnessed by their pale chalky appearance.

2. Judging from the evidence of vehicle and animal tracks, circles A - C, and probably D, seem to lie in mature managed pasture, while mark E would seem to be in a field of ripening wheat or barley. Interpretations of the cause of such marks fall into three basic categories:

a) that they reflect differential plant growth above subsurface archaeological or geomorphological structures;

b) that they are the result of superficial damage to the vegetation cover, either through disease (eg fungus rings), animal/human action (tethering, cooping, hoaxing etc) or, more controversially, the meteorological phenomena that have been proposed as an explanation of the simpler crop-circle formations.

c) that they have no terrestrial existence at all, but are instead superficial photographic blemishes on the original film or paper print.

3. Turning first to subsurface options, I would not expect Bronze Age burial mounds, infilled ponds and chalk pits or other circular archaeological structures to depict themselves as pale disks in mown or grazed grass (Circles A - C) during anything other than a period of exceptional drought. Though I do not have the detailed meteorological figures to hand, 1958 (unlike its successor, the unusually hot, dry 1959) was no more than an average summer and thus most unlikely to have allowed the formation of parch marks in grass during mid-July. As regards Circles D & E, a subsurface explanation cannot be ruled out, although as with all crop-mark evidence, I would wish to see them recur in a separate year before being confident of the interpretation.

4. Amongst superficial damage options, I would see little justification for an interpretation of circles A - C as exposures of underlying chalky soil (a genuine example of which is provided by the animal-scarring around the gateway to the field containing circles B & C), nor does the present photographic evidence persuade me that fungus rings are the answer. A remaining alternative is that circles A - C represent areas of flattened vegetation whose greater reflective value causes them to appear pale by contrast with the surrounding standing crop.

5. Before speculating further in this direction, there remains the question of a possible photographic explanation for the marks. Unfortunately, the 1958 photographic sortie does not provide us with overlapping stereoscopic cover of circles B - D. We do, however, have overlapping coverage of the area of Witherington Down around SU 202248, and it is this, I believe, that holds the key to your enquiry.

6. Close inspection of the accompanying enlargements shows that your Circle A, though plainly marked on frame 177, is entirely invisible on the overlapping frame 116. In turn, the frame 116 enlargement shows at least two further circles that cannot be detected on frame 117. Examination of other overlapping parts of the two images reveals further examples of the absence/occurrence of circles, leaving me with no option than to infer that they are unique to their individual photographs and thus with no ground reality at all. Of the various available explanations, the most likely is that they are caused by the drying of water droplets on the surface of the negatives during the original processing of the film.

7. Whilst it cannot be proved, in the absence of full overlapping cover, that all of your observed circles are drying marks, it is my professional opinion that this is by far the most likely explanation and the one with which I would prefer to stick in the absence of any stronger evidence to the contrary.

In conclusion to what I hope is not too disappointing a letter, I would offer just one more comment: it is that in the course of twenty years' work in air photographic interpretation I have encountered literally thousands of hitherto undiscovered archaeological sites, but not a single previously un-reported crop-circle - a basically unsustainable ratio if the phenomenon is a natural one occurring more or less randomly through space and time.

Yours Sincerely,
Dr Rowan Whimster."

Dr Whimster has copied parts of frames 116 and 117 to me (with 250 % enlargement) and it is clear that circle A really is missing from frame 116. For this reason we must accept Dr Whimster's conclusion that circle A is merely a photographic blemish and we offer our thanks to him for providing this incontrovertible solution.

Of course this discovery leaves the remaining circles on frame 58/2513 open to very grave doubts. It is certainly true that circles B and C closely resemble circle A - the water droplet mark - so it is almost certain that these circles are also water droplets on the original negative. Furthermore, circle E failed to impress any of the aerial archaeologists who inspected frame 58/2513 and should also be discarded on the basis that it is also dismissed as a photographic fault (which Rog Palmer and Chris Cox suggest).

It is important to note that Roy Canham, Rog Palmer and Chris Cox were all suspicious about circles A to C, despite the fact that they did not have access to the overlapping print available to Dr Rowan Whimster. This seems to suggest that aerial archaeologists are very skilled at recognising photographic faults on aerial prints.

Given this unfortunate outcome what value can we place on circles D and E ? Rog Palmer and Chris Cox were fairly sure circle D was a disk barrow, although they would have preferred to see a stereoscopic view to check the image. Susan Smith was less willing to venture an opinion about circle D whilst Roy Canham was ambiguous. Despite the fact that circle D does not appear in the Wiltshire County Council archaeological record it seems highly risky to suggest that circle D qualifies as a historical crop circle in the light of all the negative evidence raised by these experts. As for circle E, this was summarily dismissed as either a mark on the negative (Palmer and Cox) or a subconscious attempt to form a circle out of ambiguous visual clues (Smith).

We should recall that all three aerial archaeologists agreed that archaeological remains can appear on aerial photographs one year but not in others. According to a recent letter I have received from Dr Robin Allen of the Wessex Skeptics some crop marks in Sussex showed up on an aerial photograph in the 1930s but then disappeared from the aerial photographic record until the early 1970s ! This implies that any ambiguous circular trace found on an aerial photograph should not automatically be assumed to be a crop circle.

In evaluating all this evidence readers should recall that The Cerealogist has finally decided to investigate the historical evidence with an excellent article featuring the early Pepperbox Hill circles. In issue 12 page 12 George Wingfield states that :

"In the years 1965 to 1970 Suzanne, and other members of Herbert's group, first came across circles in the cropfields near Pepperbox Hill. These circles were uncommon with no more than one or two found in those years when they did appear. They were usually in wheat, and she remembers them as being clockwise and from 20 to 30 yards across though they could have been smaller."

According to Suzanne Padfield there was an article and photograph of one of these circles in the Salisbury evening paper in the late 1960s. As far as I know no one has attempted to track down this crucially important article (however, see footnote 3).

Despite Wingfield's comments we should recall the fact that back in 1987 Graham Sparkes expressed his opinion that all the crop circles which had appeared on his land were man-made because he had chased a group of people off his land and recovered an incriminating length of rope. If this is true then it is possible that Doug and Dave's predecessors kept up their campaign for 28 years !

CONCLUSIONS

1) The archive search produced a number of candidates for historical crop circles which can be dismissed in terms of photographic faults and archaeological traces. This disappointing outcome strongly suggests that many of the ambiguous circular markings I found in my archive search were also air bubbles or processing faults of some kind, rather than images of real circular features in surface vegetation on the ground.

2) The interpretation of aerial photographic images can be very misleading if the assistance of a recognised expert in the interpretation of aerial prints is not sought on every occasion.

3) Bronze Age ring ditches and round barrows can appear on aerial photographs one year but not in other years, thus ensuring that an archaeological interpretation of unusual circular images becomes difficult to rule-out.

4) Experienced aerial archaeologists claim not to have seen photographic images of crop circles prior to the modern era. It is interesting too that none of the aerial archaeologists I contacted had ever heard of crow-produced circles - a subject The Crop Watcher will return to in a later issue.

Of course, these conclusions are very disappointing, but they produce a very peculiar paradox, for on the one hand it is undeniable that photographs of phenomena which resemble crop circles pre-dating the modern era exist and it is also undeniable that several hundred accounts of circles and rings have been published in the literature, including accounts which date back to the turn of the century. It is true that some of these historical cases were contemporary accounts but unfortunately many were retrospectively reported. Numerous farmers and witnesses claim a long-established belief in a meteorologically-produced crop circle phenomenon based on eye witness testimony. So, if there is no "genuine" crop circle phenomenon and "all" crop circles are man-made, what are these people reporting and why do these reports not show up in the two aerial photographic archive searches which have been conducted to date?

These facts suggest that further archive searching and research is required before reaching a definite conclusion on the matter.


Footnotes

1. Readers should be aware of the cost of publishing this evidence. It cost £ 10 in petrol to drive to Swindon. Another £ 15 to have the photo enlarged by the N.M.R. Another £ 5 attempting to photograph the enlargement (my attempts failed). A further £ 30 to have copies of three enlargements made. Then there was postage costs. All told it has cost me £ 60 to produce this evidence, hence the shortness of this issue. I have been informed that to employ an aerial archaeologist to conduct this archive search it would have cost nearer £ 300 per day.

2. Rog Palmer has written (letter dated 25 January 1995) to point out that many of the vertical photographs I inspected were taken between August and May, when circles could not appear in mature arable crops. He states:

"Of the others the timing would have to occur in the two or three weeks between circle appearance and harvest, as they seem to only be made (now) in fairly advanced cereals. The case with oblique [photographs] is perhaps an even stronger case for their non appearance as most of the specialist low-level archaeological reconnaissance takes place at dates coincident with the circles season. We have been photographing examples of them for the last several years if only as a record of the 1980s countryside - but there are no examples from the dates you are interested in. Aerial photographers have been scouring the crops since the end of the last war. Their job is to observe, classify, and photograph, and the unexplained has been as interesting to many of them as the archaeology. Yet no circles ..."

3. On February 10th I visited Salisbury Local Studies Library to search for the article describing the Pepperbox Hill circles mentioned in issue 12 of The Cerealogist. Unfortunately George Wingfield's article mentions Suzanne Padfield's recollection of an article in the Salisbury evening newspaper, whilst Salisbury Library only has micro-film records of the weekly Salisbury & Winchester Journal. I searched in vain through all the following issues :- 14 May 1965 to 9 September 1965, 2 May 1968 to 5 September 1968, 5 June 1969 to 4 September 1969. I will return later to chase the remaining years. Curiously, there was also no mention of the infamous Charlton Crater incident in 1963, although this event featured in many national newspapers and occurred only 15 miles from the Journal's base in Salisbury. Again, this is proof that absence of evidence is not necessarily evidence of absence.

4. I would like to express my sincere thanks to Rog Palmer, Chris Cox, Susan Smith, Roy Canham and Dr Rowan Whimster for their invaluable help and advice in writing this article.



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