Here are a variety of developers, bleaches and fixers for silver halide holographic films and plates, arranged either by their names, which are usually a combination of letters and numbers, cross-correlated to the possible redundancy of names by different authors; or by the developing agents or oxidizers that are their active ingredients, with some redundacy by different names of the same chemical; or by their type; i.e. tanning, colloidal, rehalogenating, reversal, etc.