I remember what it is I wanted to ask! My typing is so slow, I lose my thread sometimes (or maybe its just my age!).  Ruhrfisch, who reviewed the article, has questioned the validity of a source and I am inclined to have my own doubts. I have searched for alternative references to these sentences which are historical to the article but to no avail. I hate deleting stuff as you know so I have been considering how to rewrite with more reliable references but I am struggling with that too. Have you any ideas?