To the Editors:

In my article “The Missions of Astronomy” [NYR, October 22], the concluding quotation from Claudius Ptolemy comes not from the Almagest but from The Greek Anthology, a collection of epigrams from late antiquity, which does not give a source for the quotation in the work of Ptolemy.

Steven Weinberg
Austin, Texas

This Issue

November 5, 2009