Quote:
So basically he agrees with me, except that he distinguishes occasional acid staining as well. The differences are purely semantic in this case.
Yes, Tonymacg, that is correct. I distinguish between foxing, toning, and mildew(tropical stains). Some do not. But if we don't distinguish among those terms, it's pretty easy to end up talking about different things without realizing it.
And yes, the link is no longer working for some reason. It was earlier.