dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Russell, Henry Norris
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 49
    Issue: 195
    Date: 1910
    Page Range: 230--231
    Publication Info: Philadelphia, American Philosophical Society,
  2. By: Russell, Henry Norris
    Type: Article
    In: Proceedings of the American Philosophical Society held at Philadelphia for promoting useful knowledge
    Volume: 51
    Issue: 207
    Date: 1912
    Page Range: 569--579
    Publication Info: Philadelphia, American Philosophical Society,