The Chief Photographic Poisons and their Antidotes

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I was reading Cassell’s Cyclopaedia of Photography (1911) last night and found an entry that I can’t resist sharing. It’s a summary of poisons that an early photographer may have encountered in their darkroom. Some of these chemicals are still in use today.

The Chief Photographic Poisons and their Antidotes (Cassells Cyclopaedia of Photography, 1911)