Did Harker give a definition of the term in his book, Jim? Can somebody quote it?

I thought it was right at the top of the thread, but it seems to have gone. I referred to it in my post of 19 Feb 20 - 04:21 PM

In that post I quoted Jack Campin's quote from Harker "By mediation I mean not just simply the fact that people passed on songs … but that in the very process of so doing their own assumptions, attitudes, likes and dislikes may well have significantly determined what they looked for, accepted and rejected." but I am not sure now whether the ellipsis (...) was me or Jack.

I suggested (having just read the book) that Harker's actual usage should go on ", how they edited it and the way in which they selected from it, presented it or explained it."

To me Harker's actual usage was often as if the words "may well have" were ommited which, to me, is how his usage comes over as being prejudicial.