The Baby Tooth Survey was formed in 1958 by the Committee of Nuclear Information, a grassroots organization that included prominent scientists and citizens in St. Louis. Under the direction of Louise Zibold Reiss, a physician, the Tooth Survey collected hundreds of thousands of baby teeth from children born in the 1950s and 1960s in the St. Louis metropolitan area, using them to measure exposure to radiation from above-ground nuclear weapons tests conducted during the early years of the Cold War. St.
Environment and Natural Resources
During the early hours of December 16, 1811, a series of violent shakes roused inhabitants of the mid-Mississippi valley from their nighttime slumbers. Those initial tremors and the sporadic ones that followed for nearly two months reshaped the landscape, altered regional settlement patterns, and prompted unnerved residents to contemplate the mysterious forces of nature capable of wreaking so much havoc. The most seriously affected areas were in southeastern Missouri, northeastern Arkansas, southwestern Kentucky, and northwestern Tennessee.