Digital BW, The Print

Is there a technique in Photoshop that might help with this? I'm trying to salvage 25-year 
old B&W negatives that have been damaged by poor storage. It's a long story, but the 
images have historic value, hence the salvage effort.

In any case, there is extensive crazing in the emulsion of the 35mm Tri-X negatives, 
leaving a visible pattern of random cracks in the image and leaving an overall gray tone.

Here's a link to a sample image:

http://ilind.net/gallery_old/ritte1976/image/ritte7.jpg

Any ideas for how to approach a problem of this kind? All suggestions appreciated.