It's odd that the myth about it has hung about so long yet it didn't take long to point out the original study was flawed .
evidence for hallucinigens on pottery .
Dear oh dear, marks off for me!
Having fully read the paper, it is not the case that Balfarg has been shown not to be an example at all, more that the attempted replication did not prove it.
"It is possible that the residue differed markedly in pollen and macrofossil content across the sherd and this explanation may account for the small cache of henbane seeds identified in the first study (Moffat 1993)."
It seems there is the possibility that the first study correctly identified black henbane, but the 2nd could not confirm it.
Fair?
I was speaking to someone involved with the second paper recently ,and their reaction was one of disappointment about the results .
What is interesting is that the original was 1993 it was refuted in in 1999 yet we only hear of the 1993 comment ,the refutation has been around twice as long .
It would be nice if things were balanced in that sense, but I suppose its a lesson in choosing sources carefully.
I hadn't read about the 1999 study, but that may be because it was fairly early on in my interest in the subject. But its a shame, info on the re-analysis should be as obvious in any search as the initial claim is in blogs, news sites etc, without having to seek out the individual papers.