Why Was the Mad Hatter Mad? | HowStuffWorks
The Not-So-Mad Hatter: Occupational Hazards of Mercury | Interesting history, History, History nerd
The science behind the mercury poisoning in S-town | Daily Mail Online
Mad Hatter's Syndrome: How Milliners Went Mental - HubPages
How Poisonous Chemicals Created The Phrase 'Mad Hatter' | Discover Magazine
Erethism - Wikipedia
Mercury poisoning | Marion Schwartz Millinery
Poisons Part I: The Mercurial World of Felt
Mad hatter disease — Science Learning Hub
Mad Hatter's Syndrome: How Milliners Went Mental - HubPages
Where did the phrase “mad as a hatter” come from?
Mad hatter's disease: Definition, causes, and symptoms
Why are Crazy People Called "Mad as a Hatter"?
Feel Like The Mad Hatter? Mercury Toxicity is More Common Than You Think
Did the Mad Hatter have mercury poisoning? | The BMJ
Poisons Part I: The Mercurial World of Felt
Erethism - Wikipedia
Mad as a Hatter: The Danbury Shakes – Shirley Wajda
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The science behind S-Town's mercury poisoning mystery - Vox
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The science behind S-Town's mercury poisoning mystery - Vox
Mad Hatter « Histories and Mysteries
Danbury's Mad Hatters –What Made Them So Mad?
Mad as a Hatter': The History of a Simile - The New York Times
