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nydus/The Principles of SciencePublic
Page 570 of 631
Table of Contents

INDEX.

  • X, the substance, 523.
  • Y
  • Yard, standard, 397.
  • Young, Dr. Thomas, tension of aqueous vapour, 500;
  • use of hypotheses, 508;
  • ethereal medium, 515.
  • Z
  • Zero point, 368.
  • Zodiacal light, 276.
  • Zoology, 666.
570