Corrections and clarifications.
In the last paragraph (p. 1909) of the article "Tropical deforestation and habitat fragmentation in the Amazon: Satellite data from 1978 to 1988" by D. Skole and C. Tucker (25 June, p. 1905), "( approximately 15,000 km(2))" should have been "( approximately 16,000 km(2))." The last sentence of note 24 of the same article should have read, "Additional ground checking and verification were done in eastern Para state, north of Manaus and along the Rio Negro, both in Amazonas."