Author:Robert Catesby Taliaferro

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Robert Catesby Taliaferro

American mathematician, historian of science and translator


  • Mathematical Composition (Almagest) by Ptolemy (1939)
  • Conics, book I by Apollonius (1939)
  • The Timaeus and the Critias (1944) (Renewal: R538920)
  • Number systems, introduction to Euclid book V, and to the theory of limits (1947)
  • On music by Augustine (1947) (Renewal: R616969)

Some or all works by this author are in the public domain in the United States because they were legally published within the United States (or the United Nations Headquarters in New York subject to Section 7 of the United States Headquarters Agreement) before 1964, and copyright was not renewed.

The longest-living author of these works died in 1989, so these works are in the public domain in countries and areas where the copyright term is the author's life plus 33 years or less. These works may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.

It is imperative that contributors search the renewal databases and ascertain that there is no evidence of a copyright renewal before using this license. Failure to do so will result in the deletion of the work as a copyright violation.