om 1 to 6 and each of X and Y is a hydrogen atom, an alkyl group of 1 to 6 carbon atoms, or an hydroxyalkyl group of 2 to 6 carbon atoms, (b) aliphatic monoamino monocarboxylic acids of up to 3 carbon atoms, and (c) aminobenzoic acids, and (4) from zero to 0.2 moles of sulfite per mole of said developing agent.