A correction on the reticulation process. All in total darkness of course. According to a Kodak manual: For Plus-X or Tri-X Use normal development time and temp in D 76, Acid stop bath at 140-150 degrees F for 1 min, Wash in cold water below 40 degrees F for 1 min. to crackle the emulsion. Then fix and wash normally. To emphasize the effect even more after the stop bath and cold dip immerse into 180-190 degree F water then into cold again before the fixer.