Here are some possibilities:
* Misspelled title: Perhaps the title is slightly incorrect. Could it be something like "Bromides and Sulphides," "Bromides and Sulphates," or "Bromides and Sulfides"?
* Unpublished work: It's possible this was a piece of writing by Burgess that was never published or has been lost to time.
* Incorrect attribution: It's possible this work is not by Burgess but by another author.
To help me find the correct information, please provide:
* Any additional context: Where did you encounter this title?
* Any other information: Do you remember any details about the work?
With more information, I can try to track down the correct title and provide a summary.
