Chemical Engineer
In 1882 the British Journal of Photography Almanac included his new formula of pyrogallol, sulfite and citric acid in their publication. In Berkeley's new formula, just before use, ammonia was added to make it more alkaline.
In London, Berkeley was a member of the Platinotype Company where he worked in association with William Willis. The company marketed Berkeley's Sulpho-pyrogallol Developer.
Read more about this topic: Herbert Bowyer Berkeley
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