title: Corrections and clarifications.
abstract: The last two sentences of the second paragraph of the report by Peter R. Buseck et al. (10 July, p. 215) should have read, "We subsequently confirmed the presence of C(60) and C(70) by mass spectrometry. They occur within fracture-filling films in shungite, an unusual carbonaceous rock found near the town of Shunga in Karelia, Russia."