fitting light proof frbrand cylindrical tank of 16 oz capacity sixteen ounces of the first solution at a temperature of 70 u00b0 f were poured from a storage bottle into the tank the reel was mildly rotated for three seconds every 30 seconds after 3 minutes the solution was poured out of the tank and returned to its storage bottle sixteen ounces of the second solution at a temperature of 70 u00b0 f were poured from a storage bottle into the tank the reel was mildly rotated for three seconds every 30 seconds after 31 3 minutes the solution was poured out of the tank and returned to its storage bottle the tank was then filled with water at 70 u00b0 f following mild agitation for 5 seconds the water was poured off and the tank was re filled with a standard aqueous solution of kodak acid fixer at 70 u00b0 f after five minutes immersion in the fixer solution the solution was poured off a stream of running water at 70 u00b0 f was then entered into the tank and continued for 25 minutes to wash all chemicals from the film the film was then immersed in a solution comprised of ten drops of kodak photoflow a nonionic surfactant in a quart of water the film was subsequently removed from the reel and hung vertically in a dust free flow of air until dry the resultant negatives were utilized in conventional manner to make photographic enlargements of 16 34 u00d7 20 34 size on kodak kodabromide paper close.