Hamitic & Chad [Languages] - 493 -  Hamitic & Chad [Literatures of Other Languages] - 893 -  Hamito-Semitic [Languages] - 492 -  Hamito-Semitic [Literatures of Other Languages] - 892 -  Handicrafts  [Drawing & Decorative Arts] - 746 -  Hardware  [Misc Manufactures] - 683 -  Health, Public  [Medical] - 614 -  Heat [Physics] - 536 -  Heating, Ventilating, Air Conditioning  [Buildings] - 697 -  Heavy Chemicals  [Chemical] - 661 -  Herbaceous Plants  [Civic & Landscape Arts] - 716 -  Hellenic  [Literature] - 880  Hellenic & Classical Greek [Language] - 480   Heresies [Church History & Geography] - 273 -  Higher Education [Education] - 378 -  Historical Books [Scriptures] - 222 -  Historical Events  [Painting] - 756 -  Historical Geography [Travel] - 911 -  Historical & Geographical [General Technology] - 609 -  Historical & Geographical [General Language] - 409 -  Historical & Geographical Treatment  [Painting] - 759 -  Historical & Geographical Treatment [Internet] 049 -  Historical Treatment [General Philosophy] - [Metaphysics] - 109 -  History [Pure Science] - 509 -  History V-Libraries 027.39 -  History, Christian [Religion, General] - 209 -  History, Description, Critical Appraisal Of More Than One Literature  [General Literature] - 809   History, Church   [Religion] -270  History, Church   V-Libraries 027.327 -  History, Collections Of  [Geography, History, & Travel] - 908 -  History and Travel [Geography, History, & Travel] - 900  Holography  [Photography] - 774 -  Holy Spirit  [Doctrinal Theology] - 237 -  Home Economics [Technology] - 640  Home & Its Equipment  [Home Economics] - 643 -  Home Nursing  [Home Economics] - 649 -  Home Workshops  [Misc Manufactures] - 684 -  Homiletics [Local Church & Religious Orders] - 251 -  Horticulture  [Agriculture] - 635 -  Household Furnishings  [Home Economics] - 645 -  Household Sanitation  [Home Economics] - 648 -  Household Utilities  [Home Economics] - 644 -  Households, Public  [Home Economics] - 647 -  Human Anatomy, Cytology, Tissue Biology  [Medical] - 611 -  Human Figures & Their Parts  [Painting] - 757 -  Human Physiology  [Medical] - 612 -  Human Place In Universe [Natural Religion] - 218 -  Humanism & Related Systems [Philosophical Systems] - 144 -  Humanity [Knowledge, Cause, Purpose, Humanity] - 128 -  Humankind  [Doctrinal Theology] - 233 -  Humor  [American Literature] - 817 -  Humor     [English & Anglo Saxon Literature] - 827 -  Humor      [Germanic Literature] - 837 -  Humor    [French Literature] - 847 -  Humor   [Italian, Romanian, Rhaeto-Romanic Literature] - 857 -  Humor  [Spanish & Portuguese Literature] - 867 -  Humor   [Latin Literature] - 877 -  Humor   [Hellenic Literature] - 887 -  Hungary [General Org & Museum Science] -  063  Hungary    [Journalism Publishing, News] - 073 -  Hunting, Shooting  [Performing Arts] - 799 -  Husbandry,  Animal[Agriculture] - 636 -  Hydraulic Engineering  [Engineering] - 627 -  Hymnology   [Moral & Devotional Theology] - 245 -  Hypotheses [Logic] - 167 -