family works on a farm picture, volume
10 page 56
geography
Gettysburg National Military Park
picture, volume 10 page 57
Independence Hall picture, volume 10
page 70
Lake Erie picture, volume 4 page 149
Pittsburgh picture, volume 10 page 57
history
Delaware volume 4 page 31
Liberty Bell picture, volume 7
page 141
Penn volume 10 page 54
Pennsylvania Provincial Assembly
(building in Philadelphia, Pennsylvania,
U.S.): see in index Independence Hall
penny-farthing (bicycle): see in index
ordinary
Penobscot (Native American people)
Abnaki volume 1 page 10
Pentagon (building in Arlington, Virginia,
U.S.)
bin Laden volume 2 page 71
damage from September 11 picture,
volume 13 page 49
pentathlon (athletic competition)
Thorpe volume 13 page 61
peony (plant and flower)
MAIN ARTICLE volume 10 page 58, picture,
volume 10 page 58
people: see in index aboriginal peoples;
Asian peoples; European peoples;
human being; Middle Eastern and
North African peoples; Native American
people’s commune (Chinese agricultural
system): see in index commune
People’s Democratic Republic of Yemen
(historical country in the Middle East)
Yemen volume 15 page 91
peoples of the United States: see in index
African American; Asian American;
Hispanic American; North American
Indian
People’s Palace (building in Tripoli,
Libya) picture, volume 13 page 98
People’s Republic of China (country in
Asia): see in index China
People United to Save Humanity (U.S.
organization): see in index PUSH,
Operation
People United to Serve Humanity (U.S.
organization): see in index PUSH,
Operation
Peoria Tribe of Oklahoma (Native
American people): see in index Illinois
pepper (plant and fruit)
MAIN ARTICLE volume 10 page 58, picture,
volume 10 page 58
MORE TO EXPLORE
cooking on a grill picture, volume 6
page 32
Pequot (Native American people)
MAIN ARTICLE volume 10 page 59
MORE TO EXPLORE
decorated Pequot canoe picture, volume
10 page 59
Mohegan volume 8 page 152
perch (fish)
four animal skeletal systems picture,
volume 12 page 95
perching duck (waterfowl)
duck volume 4 page 81
percussion instrument (musical instrument)
music volume 8 page 213
194 Peloponnesian War BRITANNICA STUDENT ENCYCLOPEDIA
musical instruments volume 8 page 215,
picture, volume 8 page 215
orchestra volume 9 page 145, picture,
volume 9 page 145
peregrine falcon (bird)
falcon volume 5 page 4
Perekop Isthmus (isthmus in the
Ukraine)
Crimea volume 3 page 217
Peri, Jacopo (Italian composer)
opera volume 9 page 142
Pericles (Athenian statesman)
Athens volume 1 page 219
pericycle (botany)
root picture, volume 11 page 96
period (physiology): see in index menstruation
periodical (publication): see in index
magazine
periodic table (chemistry) table, volume 3
page 86
chemical element volume 3
page 86
peristalsis (involuntary muscular action)
digestive system volume 4 page 47
Perkin,William Henry (British chemist)
technology and invention volume 13
page 27
permafrost (geology)
tundra volume 13 page 107
permanent memory (mental function):
see in index long-term memory
permanent tooth (anatomy)
teeth volume 13 page 30, picture, volume
13 page 31
Peron, Juan (president of Argentina)
Argentina volume 1 page 176
Perry, Oliver Hazard (U.S. naval officer)
War of 1812 volume 15 page 13
Persephone (Greek goddess)
ancient coin picture, volume 3 page 47
Demeter volume 4 page 34
Hades volume 6 page 5
Persepolis (ancient Persian city)
Apadana picture, volume 10 page 61
Perseus (Greek mythology)
MAIN ARTICLE volume 10 page 60, picture,
volume 10 page 60
MORE TO EXPLORE
Pegasus volume 10 page 49
Persia (historic region and kingdom in
Asia)
MAIN ARTICLE volume 10 page 61
MORE TO EXPLORE
Alexander the Great volume 1 page 73
Iran volume 6 page 148
Muscat volume 8 page 207
painting picture, volume 10 page 8
PersianWars volume 10 page 63
Peter the Great volume 10 page 67
ruins in Persepolis picture, volume 10
page 61
Zoroastrianism volume 15 page 110
Persian (people)
Iran volume 6 page 148
Persian Empire (historic empire from
about 550 BC-640 AD): see in index
Persia
Persian GulfWar (1991)
MAIN ARTICLE volume 10 page 62
MORE TO EXPLORE
Arab nations
Iraq volume 6 page 153
Baghdad volume 2 page 7
Saddam Hussein volume 12 page 7
Kuwait volume 7 page 91, volume 7
page 92
Saudi Arabia volume 12 page 45
United States
Bush volume 2 page 155
Powell volume 10 page 141
Schwarzkopf with troops picture, volume
10 page 62
Persian language: see in index Farsi language
Persian lynx (mammal): see in index caracal
PersianWars (ancient Greek and Persian
history)
MAIN ARTICLE volume 10 page 63, picture,
volume 10 page 63
MORE TO EXPLORE
ancient Greece volume 5 page 155
Sparta volume 12 page 161
personal computer
computer volume 3 page 172
electronic games volume 4 page 121
personal digital assistant (handheld
computer)
computer volume 3 page 172
Perth (state capital ofWestern Australia,
Australia)
Western Australia volume 15 page 30
Peru (country in South America)
MAIN ARTICLE volume 10 page 64
MORE TO EXPLORE
geography
Andes valley farmland picture, volume
10 page 65
macaws picture, volume 10 page 64
Machu Picchu volume 8 page 8
town plaza in Arequipa picture, volume
10 page 65
history
Bolivar volume 2 page 101