



Produced by Marius Masi, Don Kretz and the Online
Distributed Proofreading Team at http://www.pgdp.net







Transcriber's notes:

(1) Numbers following letters (without space) like C2 were originally
      printed in subscript. Letter subscripts are preceded by an
      underscore, like C_n.

(2) Characters following a carat (^) were printed in superscript.

(3) Side-notes were relocated to function as titles of their respective
      paragraphs.

(4) Macrons and breves above letters and dots below letters were not
      inserted.

(5) [root] stands for the root symbol; [alpha], [beta], etc. for greek
      letters.

(6) The following typographical errors have been corrected:

    ARTICLE HYDROMECHANICS: "... and [omega] the angular velocity
      about it generated by an impulse couple M, and M' is the couple
      required to set the surrounding medium in motion..." 'impulse'
      amended from 'impluse'.

    ARTICLE HYMENOPTERA: "... see P. Cameron's British Phytophagous
      Hymenoptera (4 vols., London, Roy. Soc., 1882-1893)." 'Roy'
      amended from 'Ray'.

    ARTICLE HYRCANUS: "During its later years his reign was much
      disturbed, however, by the contentions for ascendancy which arose
      between the Pharisees and Sadducees, the two rival sects or
      parties which then for the first time (under those names at least)
      came into prominence." 'disturbed' amended from 'distrubed'.

    ARTICLE ICELAND: "Iceland is emphatically a land of proverbs,
      while of folk-tales, those other keys to the people's heart, there
      is plentiful store." 'people's' amended from 'poeple's'.




          ENCYCLOPAEDIA BRITANNICA

  A DICTIONARY OF ARTS, SCIENCES, LITERATURE
           AND GENERAL INFORMATION

              ELEVENTH EDITION


            VOLUME XIV, SLICE II

        Hydromechanics to Ichnography




ARTICLES IN THIS SLICE:


  HYDROMECHANICS          HYTHE
  HYDROMEDUSAE            I
  HYDROMETER              IAMBIC
  HYDROPATHY              IAMBLICHUS (Greek philosopher)
  HYDROPHOBIA             IAMBLICHUS (Greek romance writer)
  HYDROSPHERE             IANNINA
  HYDROSTATICS            IAPETUS
  HYDROXYLAMINE           IAPYDES
  HYDROZOA                IATROCHEMISTRY
  HYENA                   IAZYGES
  HYERES                  IBADAN
  HYGIEIA                 IBAGUE
  HYGIENE                 IBARRA
  HYGINUS (eighth pope)   IBERIANS
  HYGINUS (Latin writer)  IBEX
  HYGINUS, GAIUS JULIUS   IBIS
  HYGROMETER              IBLIS
  HYKSOS                  IBN 'ABD RABBIHI
  HYLAS                   IBN 'ARABI
  HYLOZOISM               IBN ATHIR
  HYMEN                   IBN BATUTA
  HYMENOPTERA             IBN DURAID
  HYMETTUS                IBN FARADI
  HYMNS                   IBN FARID
  HYPAETHROS              IBN GABIROL
  HYPALLAGE               IBN HAUKAL
  HYPATIA                 IBN HAZM
  HYPERBATON              IBN HISHAM
  HYPERBOLA               IBN ISHAQ
  HYPERBOLE               IBN JUBAIR
  HYPERBOREANS            IBN KHALDUN
  HYPEREIDES              IBN KHALLIKAN
  HYPERION                IBN QUTAIBA
  HYPERSTHENE             IBN SA'D
  HYPERTROPHY             IBN TIBBON
  HYPNOTISM               IBN TUFAIL
  HYPOCAUST               IBN USAIBI'A
  HYPOCHONDRIASIS         IBO
  HYPOCRISY               IBRAHIM AL-MAUSILI
  HYPOSTASIS              IBRAHIM PASHA
  HYPOSTYLE               IBSEN, HENRIK
  HYPOSULPHITE OF SODA    IBYCUS
  HYPOTHEC                ICA
  HYPOTHESIS              ICE
  HYPOTRACHELIUM          ICEBERG
  HYPSOMETER              ICELAND
  HYRACOIDEA              ICELAND MOSS
  HYRCAN