[Ray Rogers]

A developing agent is a discriminating reducing agent.
Silver Sulfide is... non-discriminating. It can act as a non-discriminating developer....
PE

Uht-Oh... I'm confused! :o
Was this a typo?

Stannous Chloride is
a non-discriminating reducing agent
and thus not a developing agent.

Silver Sulfide is
a non-discriminating reducing agent
and [thus a] non-discriminating developer.


A non-discriminating developer = not being a developer, as does all non reducers, correct?