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fluoride injury to poplar leaves

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jeans, denim, pants, clothing

Why Do We Say “A Pair of Pants”?

Washington, D.C. locator map.

What State Is Washington, D.C. In?

Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm

9 Noteworthy Bog Bodies (And What They Tell Us)

Martin Luther King, Jr.

Why We Celebrate MLK Day

Andrew Jackson delivering a speech while on his way to Washington, D.C., for his inauguration in 1829. From Harper's Weekly, 1881.

5 Remarkably Close U.S. Presidential Elections

A mug shot taken by the regional Colombia control agency in Medellin

Pablo Escobar: 8 Interesting Facts About the King of Cocaine

Odissi Indian classical female dancer on white background. (Indian dancer; classical dancer; Indian dance)

6 Classical Dances of India

fluoride: Media

chemical compound

Images

fluoride injury to poplar leaves

fluoride injury to poplar leaves

Fluoride injury to poplar leaves.

Malcolm C. Shurtleff, University of Illinois, Urbana