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Side effects Quote by Douglas Preston

“Carroting, you must understand, was a process by which animal fur is bathed in a solution of mercury nitrate, in order to render the hairs more supple, thus producing a superior felt.” At this last word, he threw a significant glance in my direction. “Felt,” I repeated. “You mean, for the making…” quote by Douglas Preston
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““Carroting, you must understand, was a process by which animal fur is bathed in a solution of mercury nitrate, in order to render the hairs more supple, thus producing a superior felt.” At this last word, he threw a significant glance in my direction. “Felt,” I repeated. “You mean, for the making of hats?” “Precisely. The solution is of an orange colour, hence the term carroting. However, this process had rather severe side effects on those who worked with it, which is why its use today is much reduced. When mercury vapours are inhaled over a long enough period of time—particularly, for our purposes, in the close quarters of a hat-making operation—toxic and irreversible effects almost inevitably follow. One develops tremors of the hands; blackened teeth; slurred speech. In severe cases, dementia or outright insanity can occur. Hence the term mad as a hatter.””

Douglas Preston

About This Quote

Source Novel: The Lost City of Z, 2004

The hat‑making process used mercury, causing severe health problems, which gave rise to the phrase “mad as a hatter.”

In simple terms: Mercury in hat making caused madness.

Key Takeaway

Avoid toxic practices.

Themes

industry health history language

Mood

cautionary educational

Type

historical warning

When to use this quote

  • industrial safety
  • historical research
  • education
  • public health awareness

Key Concepts

occupational hazard toxicology etymology

Questions to Reflect On

  • What modern industries hide similar dangers?
  • How can we better protect workers?
A Different Perspective

Modern alternatives may still have hidden risks.

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