For the record - Dec. 25, 2010

“Holiday Sing-Along”: A Dec. 17 Calendar article about the “Holiday Sing-Along” at Disney Hall said that David Prather created a version of “The Twelve Days of Christmas,” during which sections of the audience stand and sing different verses, for a 2006 holiday singalong and concerts at Walt Disney Concert Hall. This was not the first such performance of “The Twelve Days of Christmas” at Disney Hall. The first section-by-section version was created and led by singer-songwriter Judith Owen when she and her husband, actor and writer Harry Shearer, hosted a holiday singalong there in 2005.

Market indexes: The list of stock market indexes and commodities prices that ran across the top of the front page of the Dec. 21 Business section erred in reporting an increase in the Dow Jones industrial average. As was reported elsewhere in the section, the Dow fell 13.78 points the previous day.

Mono Lake bacteria: A Dec. 23 article in Section A about a bacteria from Mono Lake that may be able to survive on the toxic element arsenic quoted Harry Collins, who studies the sociology of scientific knowledge at the University of Cardiff, and said that the university is in England. It is in Wales, another part of Britain.