April 18, 1906: San Francisco´s Wicked Ground

“O, promised land
O, wicked ground
Build a dream
Tear it down

O, promised land
What a wicked ground
Build a dream
Watch it all fall down”
“San Andreas Fault”

Sailors on board of the “Wellington“, just entering the bay of San Francisco, noted something unusual in the early morning hours of April 18, 1906. The captain reported later that the ship “shivered and shook like a springless wagon on a corduroy road” even if the sea was as “smooth as glass.“

Clarence Judson was swimming near Ocean Beach when he suddenly was pulled by a strong current into the sea. He made it back to the shacking shores.

“I tried to run to where I left my shoes, hat and bathrobe ... but I guess I must have described all kinds of figures in the sand.“

In Washington Street, police sergeant Jesse Cook observed a terrifying spectacle:

“The whole street ... It was as if the waves of the ocean were coming towards me,  ...[]... Davis Street split right open in front of me, []… A gaping trench. . . about six feet deep and half full of water. Suddenly ...[]... the walls of the building began to shake. Before I could get into the shelter of the doorway the walls had actually fallen inward.“

George Davidson, professor for Geography, woke up from the tumult coming from the streets. He grabbed his watch on the desk and noted the length of a first quake – 60 seconds – followed by a second – again 20 to 40 seconds long. His observations – 5:12am in the morning – will later be used to determinate the official time of the great earthquake of San Francisco. Many people were still asleep and killed in their beds, those who escaped gathered in the streets. Despite the earthquake, most of the city seemed still intact and surprisingly quiet.
In 1906 San Francisco was already considered a great, but also corrupt, city with more than 400.000 inhabitants. Thanks to the discovery of gold in the rivers of California the city was quickly expanding into its surroundings. It was an important gateway to the Pacific and a modern trade place. The newest technology in film equipment was available in the shops. The earthquake of San Francisco will become the first natural disaster of this magnitude to be so well documented by photographs and film footage (even in color).
However, most buildings in San Francisco were poorly constructed and made of wood. San Francisco had burned to the ground six times in the past century and experienced strong earthquakes in 1865 and 1868, when 30 people were killed.

“Earthquakey Times“, a caricature by Ed Jump of the October 8, 1865 earthquake in San Francisco. While he was working as a newspaper reporter in San Francisco, Mark Twain experienced the earthquake which he describes in his 1872 book “Roughing It.” – “It was just after noon, on a bright October day. I was coming down Third Street. The only objects in motion anywhere . . . were a man in a buggy behind me, and a [horse-drawn] streetcar wending slowly up the cross street. . . . As I turned the corner, around a frame house, there was a great rattle and jar. . . . Before I could turn and seek the door, there came a terrific shock; the ground seemed to roll under me in waves, interrupted by a violent joggling up and down, and there was a heavy grinding noise as of brick houses rubbing together. I fell up against the frame house and hurt my elbow. . . A third and still severer shock came, and as I reeled about on the pavement trying to keep my footing, I saw a sight! The entire front of a tall four-story brick building on Third Street sprung outward like a door and fell sprawling across the street, raising a great dust-like volume of smoke! And here came the buggy-overboard went the man, and in less time than I can tell it the vehicle was distributed in small fragments along three hundred yards of street. . . . The streetcar had stopped, the horses were rearing and plunging, the passengers were pouring out at both ends. . . . Every door, of every house, as far as the eye could reach, was vomiting a stream of human beings; and almost before one could execute a wink and begin another, there was a massed multitude of people stretching in endless procession down every street my position commanded. . . . For some days afterward, groups of eyeing and pointing men stood about many a building, looking at long zig-zag cracks that extended from the eaves to the ground...”

Police sergeant Jesse Cook was the first person to report a fire in a grocery in Clay Street. An hour later there were already fifty fires spotted in the entire city. The firefighters realized horrified that the water pipes in the underground were broken and the hydrants useless. The resulting firestorm will burn three days and will destroy 90 percent of the 28.000 buildings in San Francisco.

Journalist Arnold Genthe will take one of the most famous photos in history. 

“I found that my hand cameras had been so damaged by the falling plaster as to be rendered useless. I went to Montgomery Street to the shop of George Kahn, my dealer, and asked him to lend me a camera. “Take anything you want. This place is going to burn up anyway.” I selected the best small camera, a 3A Kodak Special. I stuffed my pockets with films and started out….”

“Looking Down Sacramento Street, San Francisco, April 18. 1906“, photography by Arnold Genthe.

In Jackson Street, the owner of the “Hotaling´s Whiskey” distillery decides to fight the flames. He pays 80 men to sprinkle 5.000 barrels of whiskey with water pumped out from the sewer system. Later he will mock all those who claim that the earthquake was sent by god by coining a new advertising slogan for his company.

“If, as some say, God spanked the town, for being over frisky – why did He burn the churches down and save Hotaling´s Whiskey?“

Army troops were soon ordered into the city to help the firefighters and prevent panic and looting. Despite the fact that martial law was never proclaimed, the major authorized policeman and soldiers to shoot looting persons – “Obey orders or get shot” was the grim warning on the signboards.
Guion Dewey, a businessman from Virginia, wandering the streets of downtown San Francisco minutes after the quake, experienced the best and worst of human behavior, as he later wrote in a letter to his mother:

“I saw innocent men shot down by the irresponsible militia. I walked four miles to have my jaw set. A stranger tried to make me accept a $10 gold piece. I was threatened with death for trying to help a small girl drag a trunk from a burning house, where her father and mother had been killed. A strange man gave me raw eggs and milk . . . (the first food I had had for twenty-two hours). I saw a soldier shoot a horse because its driver allowed it to drink at a fire hose which had burst. I had a Catholic priest kneel by me in the park as I lay on a bed of alfalfa hay, covered with a piece of carpet, and pray to the Holy Father for relief for my pain. . . . I saw a poor woman, barefoot, told to “Go to Hell and be glad for it” for asking for a glass of milk at a dairyman’s wagon; she had in her arms a baby with its legs broken. I gave her a dollar and walked with her to the hospital. . . .I was pressed into service by an officer, who made me help to strike tents in front of the St. Francis Hotel when the order was issued to dynamite all buildings in the vicinity to save the hotel. I like him and hope to meet him again. When he saw I was hurt, which I had not told him, not yet having been bandaged, he took me to his own tent and gave me water and brandy and a clean handkerchief.“

The earthquake and the firestorms killed an estimated 3.000 to 4.000 people, destroyed 28.000 buildings and the infrastructure of the entire city. However, thanks to a quick rebuilt, just three years later most of San Francisco looked as if the earthquake never happened.

Seismology was still a young scientific discipline at the time of the earthquake in San Francisco. Worldwide there were only 96 seismographs operating, none of these in California. In the aftermath of the disaster, only three days later, the Governor of California announced the formation of the State Earthquake Investigation Commission, led by geologist Andrew C. Lawson of the University of California.
The commission focused on the San Andreas Rift, a nearby valley until then considered of minor interest and mapped geologically only in short sections. For two years Lawson and his team followed the rift, mapping ponds, streams and hills on foot and horseback. They recognized that the rift follows almost the entire coastline of California for more than 1.000 kilometers. During the April 18, earthquake, almost 480 kilometers of this large fault suddenly ruptured, displacing large sections horizontally, not vertically, as geologists had previously believed to be the source of earthquakes. The commission discovered that earthquakes can be generated also along so-called strike-slip faults.
The epicenter of the earthquake was at first located at the point with the largest observed displacement on land. However, today the epicenter is believed to be situated in the Pacific Ocean, in accordance with the seismic waves coming from the sea as observed by the first eyewitnesses.
The results of the scientific investigation of the San Francisco earthquake led Henry Fielding Reid, a geology professor at Johns Hopkins University in Maryland, to propose a new theory regarding the origin of earthquakes, later dubbed the “theory of elastic rebound“. Reid’s hypothesis will have a revolutionary impact on the young science of seismology.

Sources:

SLAVICEK, L.C. (2008): The San Francisco Earthquake and Fire of 1906. Great Historic Disasters. Chelsea House Publishers: 128
STARR, J.D. (1907): The California Earthquake of 1906. A.M. Robertson, San Francisco

Clash of the Titans: The Science behind the Iceberg that sank the Titanic

The tragedy of the “unsinkable” Titanic – lost in the cold water of the Atlantic – became part of history and pop culture, but the story of the main culprit that caused the disaster is mostly forgotten and only vague descriptions and some photos exists of the supposed iceberg(s). One famous photography taken from board of the cable ship “Minia“, one of the first ships to reach the area in search for debris and bodies, shows a tabular iceberg, an unusual shape for icebergs in the northern Atlantic. The crew found debris and bodies floating in the vicinity and the captain assured that this was the only iceberg near the point of the collision. However most surviving Titanic testimonies described later the infamous iceberg with a prominent peak or even two.

Fig.1. The moment of the collision according to the sailor Frederick Fleet - one of the two men on duty as lookout in the night of the disaster (after EATON & HAAS 1986).

Fig.2. Journalist Colin Campbell, a passenger of the "Carpathia" - the first ship to approach the scene of the disaster the next morning and save the surviving passengers of the Titanic - described the iceberg for the "New York Tribune" (after EATON & HAAS 1986).

Fig.3. One of the many icebergs photographed in the morning of April 15, 1912. The passengers on the ship “Prinz Adalbert”, still unaware of the disaster of the previous night, reported later to have noted a “red smear” at the waterline of the white iceberg.

Fig.4. Photography of an iceberg from the cable ship "Minia", one of the first ships to reach the area in search for debris and bodies. The crew found debris and bodies floating in the vicinity of the depicted iceberg and the captain assured that this was the only iceberg near the scene of the collision (after Titanic & Nautical Resource Center).

Fig.5. Another iceberg, photographed five days later from board of the German ship “Bremen”, claimed to be the Titanic iceberg based on the vicinity to the location of the disaster and the description of the iceberg according to survivors. An "authentic" photography of the iceberg that sank theTitanic was worth a lot of money for the eager press, this also explain why so many photographs of icebergs were taken at the time.

Fig.6. Photography taken from board of the ship “Birma” of the same iceberg as seen by the passengers of the “Carpathia” (see also Fig.2.) – the first ship to approach the scene of the disaster and save the surviving passengers of the Titanic – and published at the time in the “Daily Sketch”. This iceberg has in fact some remarkable similarities to the iceberg as described by survivors of the disaster.  
Despite the question if one of the photos shows really the culprit iceberg, the remarkably number of spotted icebergs emphasizes the notion that in 1912 a quite impressive number of these white titans reached such southern latitudes.

The icebergs encountered in the North Atlantic originate mainly from the western coasts of Greenland, where ice streams deliver large quantities of ice in the fjords which lead to the Baffin Bay. Every year ten-thousand of small and large pieces of ice drop from the front of the glaciers and are pushed by the West Greenland Current slowly to northern latitudes, far away from ship routes. Following first the coast of Greenland this current is diverted by the Canadian coast to the south, forming the Labrador Current that circumnavigates Newfoundland and delivers the iceberg to the warm Gulf Stream. A more than 5.000km long journey full of obstacles and incessant erosion by the sun, the water and the waves. Only estimated 1 to 2% of large icebergs will, after a period of 1-3 years, reach latitude 45°N, crossing one of the most important route for ships of the entire Atlantic Ocean.

Fig.7. Schematic map of marine currents (blue= cold; red = hot) around Greenland, probable region of origin (West Greenland) and hypothetical route of the iceberg that hit the Titanic.

Apparently in 1912 icebergs were spotted remarkably often in this region and various hypotheses tried to explain this “anomaly”.  The years before 1912 were characterized by mild winters in Europe and possibly the northern Atlantic. It was therefore speculated that the (relative) warm temperatures increased the melting rate and activity of the calving glaciers on Greenland. 
Also a strengthened Labrador Current, pushing cold water and icebergs much more to the south, was proposed to explain the ice field that in the cold night 100 years ago forced various ships to stop along the Atlantic route. 
Both  hypotheses are based on the recorded values of Sea Surface Temperature (see this diagram by the Woods Hole Oceanographic Institution), which show an alternation of a warm and cold period  in 1900-1920.
A recent hypothesis – promoted by NG – proposes that an exceptional high tide prevented much of the larger icebergs to run, as normally would happen, on ground along the coasts of Baffin Bay. However considering that this tide occurred just some months before (January 1912) and the average velocity of an iceberg is low (0,7km/h~0,6mph), the Titanic iceberg had to take a straight course to arrive in time for his rendezvous with history – April 14, 1912.

Based on iceberg counts along the shores of Labrador and later in the Atlantic, also the year 1912 don’t seem to be necessarily such an anomalous event, but the disaster raised considerably the interest (and maybe perception) of the public for icebergs.

Fig.8. Iceberg counts (estimated before 1912) at 48°N, data compiled from the International Ice Patrol Iceberg Database.

In the days after the disaster bypassing ships encountered and photographed various icebergs. Some eyewitnesses claim to have noted red paint on some of them; however there is no conclusive evidence that one of these spotted white giants is really the iceberg that sank the Titanic. At least some weeks later the culprit iceberg, captured by the warm water of the Gulf Stream, melted and disappeared forever into the Atlantic Ocean.

Bibliography:

EATON, J.P. & HAAS, C.A. (1986): Titanic Triumph and Tragedy. Haynes Publishing: 352
SOUTH, C. et al. (2006): The Iceberg That Sank the Titanic. The Natural World documentary film – BBC

April 10, 1815: The Eruption that Shook the World

“I had a dream, which was not all a dream.  
The bright sun was extinguish’d, and the stars  
Did wander darkling in the eternal space,  
Rayless, and pathless, and the icy earth  
Swung blind and blackening in the moonless air;
Morn came and went – and came, and brought no day”
“Darkness” (1816) by Lord Bryon (1788-1824)

In the year 1816 Europe was slowly recovering from the Napoleonic wars, ended just one year earlier. After years of desperation and destruction people hoped for better times – but the summer that came was rainy and cold and on the fields the crops did not mature or rotted away, famine and diseases were the consequences. Also the north-eastern states of the US experienced snowstorms and frost in the middle of summer. The year 1816 has come to be known as the “year without a summer.“

Fig.1. Development of costs in the years 1816-17 of important articles of food in Europe. Especially crops and bread, essential for the large and poor populations on the continent, experienced a massive increase in costs due the failed harvests. Meat was still a precious resource available only to a limited group of persons at the time; the reduced livestock therefore could still satisfy the demand (modified after ABEL 1974).

The strange behaviour of the weather was unexplainable at the time. Nobody could imagine that the origins of the strange phenomena were to be found on the opposite side of earth, where an entire mountain had annihilated itself in the largest volcanic eruption of modern history.

The estimated 4.000m high volcano of Tambora on the island of Sumbawa in Indonesia erupted with an intensity of VEI 7 – 100x stronger than Mount St. Helens. During the peak of eruption April 10, 1815 the mountain lost 1.300m height and catapulted estimated two million tons of debris, particles and sulphur components into the higher layers of the atmosphere. These aerosols reduced the solar radiation on earth’s surface and influenced worldwide weather patterns for years to come.
 

Thousands of people died by the direct effects of the four month lasting eruption, like poisonous clouds and gas, large pyroclastic flows and tsunamis. In the surrounding area of the volcano the vegetation was killed and the soil poisoned for years. Many more suffered from the climatic effects and the aftermath of the eruption. Almost the entire northern hemisphere, in a period with already cool climate, experienced an ulterior drop of temperatures, famine and diseases spread over the world.

Fig.2. "Volcano and fishing proas near Passoeroean, on the Java coast, Indonesia" by Thomas Baines (1820-1875).

Only one year later a detailed account of the catastrophe was published first in the “History of Java” (1817) by the English governor of Indonesia and naturalist Sir Thomas Stamford Bingley Raffles (1781-1826) and later incorporated in Lyell’s “Principles of Geology” (1850):

“Island of Sumbawa, 1815. – In April, 1815, one of the most frightful eruptions recorded in history occurred in the province of Tomboro, in the island of Sumbawa, about 200 miles from the eastern extremity of Java.
In the April of the year preceding the volcano had been observed in a state of considerable activity, ashes having fallen upon the decks of vessels which sailed past the coast. The eruption of 1815 began on the 5th of April, but was most violent on the 11th and 12th, and did not entirely cease till July. The sound of the explosions was heard in Sumatra, at the distance of 970 geographical miles in a direct line; and at Ternate, in an opposite direction, at the distance of 720 miles. 

Out of a population of 12,000, in the province of Tomboro, only twenty-six individuals survived. Violent whirlwinds carried up men, horses, cattle, and whatever else came within their influence, into the air; tore up the largest trees by the roots, and covered the whole sea with floating timber. Great tracts of land were covered by lava, several streams of which, issuing from the crater of the Tomboro mountain, reached the sea. So heavy was the fall of ashes, that they broke into the Resident’s house at Bima, forty miles east of the volcano, and rendered it, as well as many other dwellings in the town, uninhabitable. 

On the side of Java the ashes were carried to the distance of 300 miles, and 217 towards Celebes, in sufficient quantity to darken the air. The floating cinders to the westward of Sumatra formed, on the 12th of April, a mass two feet thick, and several miles in extent, through which ships with difficulty forced their way. The darkness occasioned in the daytime by the ashes in Java was so profound, that nothing equal to it was ever witnessed in the darkest night. 
Although this volcanic dust when it fell was an impalpable powder, it was of considerable weight when compressed, a pint of it weighing twelve ounces and three quarters. “Some of the finest particles,” says Mr. Crawfurd, “were transported to the islands of Amboyna and Banda, which last is about 800 miles east from the site of the volcano, although the south-east monsoon was then at its height.” They must have been projected, therefore, into the upper regions of the atmosphere, where a counter current prevailed.  

Along the sea-coast of Sumbawa, and the adjacent isles, the sea rose suddenly to the height of from two to twelve feet, a great wave rushing up the estuaries, and then suddenly subsiding. Although the wind at Bima was still during the whole time, the sea rolled in upon the shore, and filled the lower parts of the houses with water a foot deep. Every prow and boat was forced from the anchorage, and driven on shore.  
The town called Tomboro, on the west side of Sumbawa, was overflowed by the sea, which encroached upon the shore so that the water remained permanently eighteen feet deep in places where there was land before. Here we may observe, that the amount of subsidence of land was apparent, in spite of the ashes, which would naturally have caused the limits of the coast to be extended.  

The area over which tremulous noises and other volcanic effects extended, was 1000 English miles in circumference, including the whole of the Molucca Islands, Java, a considerable portion of Celebes, Sumatra, and Borneo. In the island of Amboyna, in the same month and year, the ground opened, threw out water, and then closed again.

In conclusion, I may remind the reader, that but for the accidental presence of Sir Stamford Raffles, then governor of Java, we should scarcely have heard in Europe of this tremendous catastrophe. He required all the residents in the various districts under his authority to send in a statement of the circumstances which occurred within their own knowledge; but, valuable as were their communications, they are often calculated to excite rather than to satisfy the curiosity of the geologist. They mention, that similar effects, though in a less degree, had, about seven years before, accompanied an eruption of Carang Assam, a volcano in the island of Bali, west of Sumatra; but no particulars of that great catastrophe are recorded.“

Bibliography:

ABEL, W. (1974): Massenarmut und Hungerkrisen im vorindustriellen Europa. Versuch einer Synopsis. Hamburg-Berlin: 427
BOER, de J.Z. & SANDERS, D.T. (2002): Volcanoes in Human History: The Far-Reaching Effects of Major Eruptions. Princeton University Press: 295
OPPENHEIMER, C. (2011): Eruptions that Shook the World. Cambridge University Press: 392

Frauds, Fakes and Fossils

“What are they?

Creations of mind?- The mind can make Substance,
and people planets of its own
With beings brighter than have been, and give
A breath to forms which can outlive all flesh”
“The Dream“, Lord Bryon (1788-1824)

In the year 1725 the professor of medicine and personal physician of the bishop of the German town of Würzburg, Dr. Johann Bartholomäus Adam Beringer (1667-1738), was approached by three chaps, who offered him the possibility to purchase some strange stones they had found in the fields.

Beringer recognized the unique value of the discovery and paid a rich reward for these and further specimens. After a short time he possessed the greatest collection of stones displaying on the surface various bugs, molluscs, plants, birds, mammals, stars, suns and even Hebraic letters.
One year later, in 1726, Beringer published a monographic work with 14 sections and 21 plates depicting 204 specimens of his collection: the “Lithographia Wirceburgensis”, assuring the veracity of the stones as a divine miracle.

But then the scandal was revealed – the chaps admitted that the stones were artificially carved, incited by two peers of Beringer, the mathematician Jean Ignace Roderique (1697-1756) and the theologian Johann Georg von Eckhardt (1664-1730). The two scholars admitted that the fraud was their revenge for the presumptuous behaviour of Beringer and intended to expose his credulity and incompetence. The public was not amused by the childish behaviour of all the involved persons: The reputation of all the three scholars was ruined, Roderique and Eckhardt were forced to leave the city and Beringer tried to minimize the damage by destroying almost all of the printed copies and the printing plates of his book. He never recovered from the humiliation and died embittered years later.
Almost every student of earth sciences knows this or a similar version of the myth, often told in textbooks as warning of blind faith and argument from authority. The beautiful carved stones of limestone are today remembered as “Würzburger Lügensteine” – the infamous “lying stones of Würzburg“.

However careful study of the still existing stones and the preserved historic documents of the lawsuit that investigated the claims of fraud at Beringer´s time depict a much more complicated “criminal case.”

Today 434 lying stones survive, 494 are depicted in the Lithographia Wirceburgensis and Beringer himself claims that he possessed more than 2.000. However considering the short period in which the “discoveries” took place (less than one year) it seems more reasonable to assume that this number is deliberately exaggerated. Estimated 600 to 1.100 true lying stones seem a more plausible number.

Beringer affirms that he received or discovered the first stones in May of the year 1725. Between June and November he hired the two brothers Hehn, the chap Zänger and later a fourth person, which name is not recorded, to collect further stones on the presumed site of the first discovery.

Beringer began almost immediately to describe the various stones and ordered the printing plates for his book; he also published a preview of his work in October of 1725. Already then first doubts were cast on the veracity of the stones, but Beringer presented various witnesses that could testify that indeed the stones were found during the excavations on a hill near Würzburg. Johann Georg von Eckhardt, and later Jean Ignace Roderique, were send to investigate the site but couldn’t find any stone there. However they also couldn’t provide evidence to dismiss Beringer´s claims.

It is important to note that Beringer never affirmed that the stones were true petrifactions (as the petrified remains of organisms killed by the biblical flood) and he even states that the stones differ from the true petrifactions found in the hills near Würzburg. He discusses in great detail the various explanations proposed for the origin of petrifactions in the first chapters of “his” Lithographia (as a matter of fact the book is published as doctoral thesis under the name of one of Beringer´s students – Georg Ludwig Hueber – but his contribution is limited to an introduction of nine pages) and examines the various hypotheses, but dismiss all in favour of a literally “miracle”. God himself created these stones and the recognizable carving spurs (!) on the stones are only a trace of the power of god creating these figures.

In spring of 1726 Beringer received some rocks from the fourth chap, this time in fact fabricated by Roderique to reveal the artificial nature of the stones. The fraud is revealed, even in the presence of the bishop (the Lithographia is dedicated to him), but Beringer simply modifies some chapters of the Lithographia, still in press, claiming that it is now only proven that the last stones are fakes and the first generation is still evidence for (literally) god’s hand carving the rocks. Beringer is apparently so self-confident in his position that he initiates a process against the claims of fraud regarding his persona. In the process, that will last until after the publication of the Lithographia, the incriminated chaps will only admit to have sold the stones to Beringer, but not to have carved the figures. Considering the depictions of exotic animals and even Hebraic letters on the lying stones it is in fact difficult to image that people from a rural area with no naturalistic background would be able to execute such an elaborate hoax.

There is no doubt that the scholar Roderique manufactured some of the stones, however he arrived to Würzburg only in the winter 1725-1726, so he can not be responsible for the first generations of stones described by Beringer already in October of 1725. Roderique left Würzburg voluntarily in 1730, the revealed “scandal” had no influence on his career and he died as respected scholar and publisher years later. There is no evidence that Eckhart played a major role in the entire story, apart the first investigation of the supposed excavation site. Both Roderique and Eckhart had no need for revenge versus Beringer and were relatively unsuccessful in the attempt to discredit the lying stones, as they – or others, could never demonstrate that that the first stones were fakes.

But who then faked the first lying stones?

Beringer didn’t suffer too much from the supposed scandal, not only didn’t he even try to prevent the publication of the Lithographia after the first claims of fraud (there was still plenty of time left), but he retained his position and reputation. In 1767 even a second edition of the Lithographia was published with the original plates (not even touched by Beringer) of the first edition.
His hypothesis of divine intervention on the rocks was never ridiculed in a time when fossils were anyway considered the vestiges of a biblical flood. However it is true that after the newspapers revealed that it was possible to fake the stones (like done by Roderique) the lying stones could no longer be used to support uncritically the "divine crafted" hypothesis.

Only after Beringer´s death his strange behaviour, he remained unimpressed by all the claims of fraud, was interpreted by many authors as simple ignorance or even criminal stubbornness. But maybe he remained calm because he was sure that nobody could definitely prove that the first generations of stones were fakes, simply because he knew who carved the figures in the stones. Beringer had the naturalistic knowledge and probably also the contacts to professional craftsmen to perpetuate such an elaborate hoax – even if we never will know the entire truth, one fact is clear, the modern myth of the lying stones is itself a lie…

Bibliography:

BEHRINGER, J.B.A. & HUEBER, G.L. (1726): Litographiae Wirceburgensis, ducentis lapidum figuratorum, a potiori insectiformium, prodigiosis imaginibus exornatae specimen. Würzburg 1726. Scan by www.BioLib.de
NIEBUHR, B. & GEYER, G. (2005): Beringers Lügensteine: 493 Corpora Delicti zwischen Dichtung und Wahrheit. Beringeria Sonderheft 5, Teil II: 188