I would also like to warn anyone about the formulas in Champlin's book which contain organic acids such as benzoic and salicylic acids. These chemicals may cause softening of the emulsion leading to reticulation.
This book illustrates why I take a jaundiced eye to all old developer formulations. Modern emulsions are very different from those used when these old time developers were formulated. There is no reason to believe that these formulations will provide better results than modern developers. Despite what some advocate on APUG, there is no "holy grail" of developers.