Yet these theories by Carlson have, in their own turn, been challenged by subsequent scholarly research, especially by Scott G. Brown in numerous articles. Brown writes that Carlson's Morton Salt Company clue "is one long sequence of mistakes" and that "the letter nowhere refers to salt being mixed with anything" – only "the true things" are mixed. He also says that salt can be mixed without being free-flowing with the help of mortar and pestle, an objection that gets support from Kyle Smith, who shows that according to ancient sources salt both could be and was "mixed and adulterated". Having got access to the uncropped original photograph, Allan Pantuck and Scott Brown also demonstrated that the script Carlson thought was written by M. Madiotes actually was written by someone else and was an eighteenth-century hand unrelated to Clement's letter to Theodore; that Smith did not attribute that handwriting to a contemporary named "M. Madiotes" (M. Μαδιότης), and that he afterwards corrected the name "Madiotes" to "Madeotas" (Μαδεότας) which may, in fact, be "Modestos" (Μοδέστος), a common name at Mar Saba.