1911 Encyclopædia Britannica/Vol 14:2
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 ../Hypertrophy/
 ../Hypnotism/
 ../Hypocaust/
 ../Hypochondriasis/
 ../Hypocrisy/
 ../Hypostasis/
 ../Hypostyle/
 ../Hyposulphite of Soda/
 ../Hypothec/
 ../Hypothesis/
 ../Hypotrachelium/
 ../Hypsometer/
 ../Hyracoidea/
 ../Hyrcania/
 ../Hyrcanus/
 ../Hyssop/
 ../Hystaspes/
 ../Hysteresis/
 ../Hysteria/
 ../Hysteron-Proteron/
 ../Hythe/
 ../I/
 ../Iambic/
 ../Iamblichus (philosopher)/
 ../Iamblichus (writer)/
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 ../Iannina/
 ../Iapetus/
 ../Iapydes/
 ../Iatrochemistry/
 ../Iazyges/
 ../Ibadan/
 ../Ibagué/
 ../Ibarra/
 ../Iberians/
 ../Ibex/
 ../Ibis/
 ../Iblis/
 ../Ibn 'Abd Rabbihi/
 ../Ibn 'Arabī/
 ../Ibn Athīr/
 ../Ibn Batuta/
 ../Ibn Duraid/
 ../Ibn Faradī/
 ../Ibn Fārid/
 ../Ibn Gabirol/
 ../Ibn Hauḳal/
 ../Ibn Ḥazm/
 ../Ibn Hishām/
 ../Ibn Isḥāq/
 ../Ibn Jubair/
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 ../Ibn Khaldūn/
 ../Ibn Khallikān/
 ../Ibn Qutaiba/
 ../Ibn Ṣa'd/
 ../Ibn Tibbon/
 ../Ibn Ṭufail/
 ../Ibn Usaibi'a/
 ../Ibo/
 ../Ibrahīm Al-Mauṣilī/
 ../Ibrahim Pasha/
 ../Ibsen, Henrik/
 ../Ibycus/
 ../Ica/
 ../Ice/
 ../Iceberg/
 ../Iceland/
 ../Iceland Moss/
 ../Ice-Plant/
 ../Ice-Yachting/
 ../I-Ch'ang/
 ../Ichneumon/
 ../Ichneumon-Fly/
 ../Ichnography/
 ../Ichthyology/
 ../Ichthyophagi/
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 ../Ichthyosaurus/
 ../Ichthyosis/
 ../Icknield Street/
 ../Icon/
 ../Iconium/
 ../Iconoclasts/
 ../Iconostasis/
 ../Icosahedron/
 ../Icterus/
 ../Ictinus/
 ../Ida/
 ../Idaho/
 ../Idar/
 ../Idas/
 Iddesleigh, 
 ../Idea/
 ../Idealism/
 ../Ideler, Christian Ludwig/
 ../Identification/
 ../Ideograph/
 ../Idioblast/
 ../Idiom/
 ../Idiosyncrasy/
 ../Idolatry/
 ../Idomeneus/
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