The April 1 "Jurisprudence" mistakenly identified Indiana University as the University of Indiana. The error was introduced at the editing stage.

In the March 30 "Green Lantern," Nina Shen Rastogi miscalculated some key energy figures as kilowatts. They should have been presented as kilowatt-hours.

In a March 30 "Politics," Christopher Beam mistakenly referred to Rep. John Dingell as a senator.

In the March 28 "Today's Papers," Barron YoungSmith wrote that a 9-year-old rape victim in Brazil was excommunicated from the Catholic Church after getting an abortion. Her mother and doctors were excommunicated, but the original New York Times article about the incident did not specify whether she was. YoungSmith also wrote that temperatures in Fargo, N.D., were subzero. In fact, they were subfreezing.

In the March 27 "Explainer," Juliet Lapidos stated that the United States is not a Protocol III signatory. In fact, the United States deposited its instruments of ratification in January of this year.

In the March 18 "Architecture," Witold Rybczynski stated that it took police two days to arrive on the scene after a corpse was discovered by a journalist in an abandoned building in Detroit. While Detroit police were initially criticized for a tardy response, police records show they arrived promptly after the discovery of the body was reported.

In the March 17 "Green Lantern," Nina Shen Rastogi suggested that Parliament cigarettes might be a greener option than other cigarettes because they use paper filters. Parliaments' filters, however, also include a component made from cellulose actetate, a nonbiodegradable material found in most conventional cigarette filters.

In a Jan. 2, 2001, article that was republished for Slate's 10-year anniversary on June 18, 2006, Seth Stevenson misspelled the name of the literary character Dr. Jekyll.

If you believe you have found an inaccuracy in a Slate story, please send an e-mail to corrections@slate.com, and we will investigate. General comments should be posted in "The Fray," our reader discussion forum.