• publisher: New York, London, : G. P. Putnam
  • creator: Poor, Charles Lane, 1866- Chamberlin, Thomas C. (Thomas Chrowder), 1843-1928
  • contributor: Chamberlin, Thomas C. (Thomas Chrowder), 1843-1928.
  • Keyword: Gravitation Relativity (Physics) Astronomy
  • years: 1922.
  • pages: xxxiv, 277 p. :
  • class: QC178
  • download: pdf file