"tivators provide the desired pH. These include those commonly employed in the photographic art as development activators, such as inorganic alkali, e.g., alkali metal hydroxide including sodium hydroxide, potassium hydroxide and lithium hydroxide, alkali metal carbonate, such as sodium carbonate, sodium bicarbonate, fuming ammonia, and the like as Well as organic alkali such as organic amines and" . . . . .