beliefs and practices
Bible volume 2 page 67
church volume 3 page 117, picture,
volume 3 page 113
female ministers picture, volume 10
page 157
Christianity volume 3 page 112
Europe volume 4 page 162
history
Calvin volume 3 page 16, picture, volume
3 page 16
Elizabeth I volume 4 page 125
France volume 5 page 60
Holy Roman Empire volume 6 page 75
Huguenots volume 6 page 92
Northern Ireland volume 9 page 90
Reformation volume 11 page 38
North America volume 9 page 81
Protestant Reformation (Christianity):
see in index Reformation
protests: see in index demonstrations and
protests
protist (biology)
MAIN ARTICLE volume 10 page 158
MORE TO EXPLORE
algae volume 1 page 76
classification picture, volume 7 page 168
living thing volume 7 page 169
prehistoric life volume 10 page 144
slime mold picture, volume 10 page 158
Protoceratops (dinosaur)
dinosaurs in scale picture, volume 4
page 53
protoctist (biology): see in index protist
proton (subatomic particle)
atom volume 1 page 224, picture, volume
1 page 225
electricity volume 4 page 120
protozoan (microorganism)
MAIN ARTICLE volume 10 page 159
MORE TO EXPLORE
fossil picture, volume 10 page 159
human disease volume 4 page 56
malaria volume 8 page 25
parasite volume 10 page 33
species on earth picture, volume 7
page 167
Providence (city in Maryland, U.S.): see
in index Annapolis
Providence (state capital of Rhode Island,
U.S.)
MAIN ARTICLE volume 10 page 160, picture,
volume 10 page 160
MORE TO EXPLORE
Rhode Island volume 11 page 60
Provisional Irish Republican Army
(Irish military organization): see in index
Irish Republican Army
Prussia (region in Europe)
MAIN ARTICLE volume 10 page 161
MORE TO EXPLORE
Frederick the Great volume 5 page 64
Germany volume 5 page 106
Poland volume 10 page 108
Prydain Chronicles (novels by Alexander)
Alexander volume 1 page 74
Przewalski’s horse (mammal) picture,
volume 6 page 86
evolution picture, volume 4 page 170
horse volume 6 page 86
Psalms (biblical text)
Bible volume 2 page 67
pseudopod (protozoan cell behavior)
amoeba volume 1 page 108
Psittacosaurus (dinosaur)
dinosaurs in scale picture, volume 4
page 53
mouth structure picture, volume 4
page 51
psychiatric disorder: see in index mental
illness
psychiatry
mental illness volume 8 page 101
psychology (science)
MAIN ARTICLE volume 10 page 162, picture,
volume 10 page 162
psychomotor learning (motor development)
child development volume 3 page 97
psychotherapy (psychology)
mental illness volume 8 page 101
psychotic disorder (psychology)
mental illness volume 8 page 100
pterodactyl (prehistoric reptile)
MAIN ARTICLE volume 10 page 163
MORE TO EXPLORE
fossil skeleton picture, volume 10
page 163
Ptolemies (ancient Egyptian rulers)
ancient Egypt volume 4 page 115
Ptolemy I Soter (Macedonian king of
Egypt)
Alexandria volume 1 page 75
ancient Egypt volume 4 page 115
Ptolemy XIII (Macedonian king of
Egypt)
Cleopatra volume 3 page 134
Ptolemy XIV (Macedonian king of
Egypt)
Cleopatra volume 3 page 134
Ptolemy (Egyptian scientist)
astronomy volume 1 page 215
ptomaine poisoning: see in index food
poisoning
puberty (stage of growth)
acne volume 1 page 18
public aquarium: see in index aquarium
public assistance: see in index social welfare
program
public education
education volume 4 page 106
Public Enemy (U.S. rap group)
rap volume 11 page 27
public health
MAIN ARTICLE volume 10 page 163, picture,
volume 10 page 164
public library
images
boy in a library picture, volume 7
page 141
librarian with students picture, volume
7 page 142
library volume 7 page 142
208 protective coloration BRITANNICA STUDENT ENCYCLOPEDIA
public school system: see in index public
education
public transportation
elevated railway picture, volume 13
page 92
publishing: see in index book; cartoon;
magazine; map; printing; writing
puck (ice hockey equipment)
ice hockey volume 6 page 67
pudu (mammal)
deer volume 4 page 26
Puebla, Battle of (Mexican-French history)
Cinco de Mayo volume 3 page 119
Pueblo de la Reyna de los Angeles, El
(city in California, U.S.): see in index
Los Angeles
Pueblo Indians (Native American
people)
MAIN ARTICLE volume 10 page 164
MORE TO EXPLORE
adobe volume 1 page 30
Anasazi volume 1 page 114
Native Americans volume 9 page 17
Navajo volume 9 page 23
Zuni adobe houses picture, volume 10
page 164
Puerto Rican (people)
Hispanic Americans volume 6 page 61
Puerto Rico (Caribbean island commonwealth
of the U.S.)
MAIN ARTICLE volume 10 page 165, picture,
volume 10 page 165
MORE TO EXPLORE
Ponce de Leon volume 10 page 122
Puerto Rico Trench (submarine depression,
Atlantic Ocean)
Atlantic Ocean volume 1 page 220
puffin (bird): see in index Atlantic puffin
pug (breed of dog)
toy dogs table, volume 4 page 62
pugilism (sport): see in index boxing
puja (Hinduism)
Hinduism volume 6 page 56
Pulaski, Casimir (Polish patriot and U.S.
army officer)
MAIN ARTICLE volume 10 page 166, picture,
volume 10 page 166
Pulaski Legion (U.S. military unit)
Pulaski volume 10 page 166
pulley (mechanics)
machine volume 8 page 6, picture, volume
8 page 6
Pullman Strike (U.S. history)
Cleveland volume 3 page 136
pulmonary circulation (physiology)
cardiovascular system volume 3 page 39
pulp (tooth)
teeth volume 13 page 31