white holes in negatives

What causes negatives to get those little "holes" in them? Not literally
all the way through the film base, but holes in the emulsion, like little
clear or white specks? I think I heard some place that you can prevent
those by using water instead of stop, but I always use water and I get them
anyway. Maybe I'm handling the negatives too roughly?

--shannon
Received on Wed Jun 26 23:43:01 2002