Wheat’s Evil Twin Has Been Intoxicating Humans for Centuries (2016)
atlasobscura.com
atlasobscura.com
p34 talks about its constituent properties. Crucially no one is quite sure what the exact active component is
Polish wikipedia says up to 86% of seeds carry it but without source. This paper [1] says 70% of 'wild populations' of related L. perenne, implies infection in darnel (L. temulentum) is also prevalent, but notes most populations have low frequency of infected individuals and then tries to explain that.
[1]: https://mivegec.ird.fr/images/stories/PDF_files/0250.pdf
It's suspected that ergot caused the Strasbourg dancing plague of 1518 [1]
https://www.pbs.org/wnet/secrets/witches-curse-clues-evidenc...
Another way to do this is to turn off javascript and force pages to behave like documents. Only a single image will load but all the text is there and that's what matters.
http://www.sidthomas.net/pdf/paperpdfs/Thomas%20et%20al%20Jo...