tonsillitis picture, volume 13 page 81
infectious disease
animal disease volume 4 page 55
human disease volume 4 page 56
infield (athletics)
track and field volume 13 page 84
122 Indianapolis Clowns BRITANNICA STUDENT ENCYCLOPEDIA
infield (part of baseball field)
baseball volume 2 page 30
softball volume 12 page 122
influenza (viral infection)
MAIN ARTICLE volume 6 page 136
MORE TO EXPLORE
AIDS volume 1 page 50
cough volume 3 page 207
epidemic volume 4 page 146
flu shot picture, volume 10 page 164
temporary hospital, 1918-19 flu epidemic
picture, volume 6 page 136
influenza epidemic of 1918-19 (pandemic)
temporary hospital picture, volume 6
page 136
information: see in index data; library;
statistics
infrared radiation (physics)
greenhouse effect picture, volume 5
page 157
radiation volume 11 page 17
types of electromagnetic radiation
picture, volume 11 page 18
Ingalls, Laura Elizabeth (United States
author): see in indexWilder, Laura
Ingalls
inhaler (medical device) picture, volume 1
page 213
ink painting (art)
painting volume 10 page 9
inland sea (physical feature): see in index
lake
in-line skating (recreation) picture, volume
11 page 81
roller skating volume 11 page 81
skating volume 12 page 95
inner ear (anatomy)
ear volume 4 page 87, picture, volume 4
page 87
Inner Light (religious concept)
Quakers volume 11 page 5
Inner Mongolia (autonomous region of
China)
Mongolia volume 8 page 164
inner planet (astronomy): see in index
terrestrial planet
inning (baseball)
baseball volume 2 page 32
innings (cricket)
cricket volume 3 page 215
Innu (Native American people)
Newfoundland and Labrador volume 9
page 46
Innuit (people): see in index Eskimo
input/output device (computer technology)
computer volume 3 page 173
Inquisition (Roman Catholicism)
MAIN ARTICLE volume 6 page 137, picture,
volume 6 page 137
MORE TO EXPLORE
Ferdinand and Isabella volume 5 page 10
Galileo volume 5 page 82
Reformation volume 11 page 39
Spain volume 12 page 155
inquisitor (Roman Catholicism)
Inquisition volume 6 page 137
insanity: see in index mental illness
insect (animal class)
MAIN ARTICLE volume 6 page 138
MORE TO EXPLORE
brain volume 2 page 122
cave volume 3 page 64
exoskeleton volume 4 page 172, picture,
volume 6 page 139
hormone volume 6 page 84
images
animal species picture, volume 7
page 167
body structure picture, volume 6
page 138
honeybees picture, volume 6 page 138
ladybug and eggs picture, volume 4
page 108
muscle attachment picture, volume 8
page 207
respiratory system picture, volume 11
page 54
insecticide (chemical compound)
mosquito volume 8 page 189
Institutional Revolutionary Party
(political party in Mexico)
Mexico volume 8 page 112
insulin (hormone)
diabetes volume 4 page 43
endocrine system volume 4 page 136
pancreas volume 10 page 24
Insurance City (city in Connecticut,
U.S.): see in index Hartford
insurrection (politics): see in index rebellion
intake stroke (internal combustion)
internal-combustion engine volume 6
page 141, picture, volume 6 page 140
integer (mathematics)
numbers and number systems volume 9
page 106
integrated circuit (electronics) picture,
volume 3 page 174
computer volume 3 page 174
electronics volume 4 page 123
worker assembling microchip picture,
volume 4 page 123
integration (racial): see in index racial
integration
intelligence (psychology)
artificial intelligence volume 1 page 195
intelligence, artificial: see in index artificial
intelligence
intelligence agent (intelligence): see in
index spy
intelligent design: see in index creationism
intensity (sound)
sound volume 12 page 135, picture, volume
12 page 135
intensive care unit (hospital area)
hospital volume 6 page 88
interception (sports)
football volume 5 page 49
interest (finance)
banking volume 2 page 24
Interior, Department of the (U.S. government
agency)
United States government executive
departments table, volume 14 page 35
Interior Salish (Native American
people): see in index Salish
internal-combustion engine
MAIN ARTICLE volume 6 page 140, picture,
volume 6 page 140
MORE TO EXPLORE
automobile volume 1 page 235, picture,
volume 1 page 235
BRITANNICA STUDENT ENCYCLOPEDIA internal-combustion engine 123
internal materials salvage (waste management):
see in index internal recycling
internal migration
human migration volume 8 page 126
internal recycling (waste management)
recycling volume 11 page 35
international aid: see in index foreign aid
International Association of Athletics
Federations (international sports organization)
track and field volume 13 page 87
International Brigades (military force)
Spanish CivilWar volume 12
page 159
International Committee of the Red
Cross (Swiss aid organization)
Red Cross and Red Crescent volume 11
page 36
International Court of Justice (United
Nations)
Hague, The volume 6 page 5
Peace Palace picture, volume 6 page 6
United Nations volume 14 page 22
International Date Line
time volume 13 page 67
International Ice Hockey Federation
(sports organization)
ice hockey volume 6 page 69
International Labour Organization
(United Nations agency)
labor volume 7 page 98
International Military Tribunal (court)
Nuremberg Trials volume 9 page 110
