Digital BW, The Print

I suggest you go to Usenet rec.photo.darkroom and post your question 
there. There are a variety of "re-processing" techniques that might 
restore your negatives so they scan better. Re-washing is a good 
first step. There is a slight danger that the emulsion is so damaged 
that re-washing causes more harm, but not much. However, I would not 
hold out much hope for improvement thru re-washing. Other techniques 
might help, but they are usually do-or-die. For example, soaking an 
old negative with a "thin" emulsion in a heavy concentrate of 
Selenium will restore density, but if you go to far the negative 
get's too dense and shadows might be lost.

Post on rec.photo.darkroom and hope that a guy named Richard Knoppow 
answers you. He's a technical film chemistry genius, and very 
helpful. I had this old e-mail address for him, but it's very old and 
may no longer be valid.  dickburk@...