Red Sea volume 11 page 37
trade volume 13 page 89
trade unionism: see in index organized
labor
trade wind (air current)
wind volume 15 page 48
trading (economics): see in index market
traditional animation (motion pictures)
animation volume 1 page 130, picture,
volume 1 page 130
cartoon volume 3 page 50
tragedy (literature and theater)
drama volume 4 page 73
Shakespeare volume 12 page 75
Tai Chi chuan (martial art) picture,
volume 8 page 64
martial arts volume 8 page 65
Trail of Tears (U.S. history)
MAIN ARTICLE volume 13 page 89, picture,
volume 13 page 89
MORE TO EXPLORE
Cherokee volume 3 page 88
Jackson volume 7 page 7
Native Americans volume 9 page 19
train (railway vehicle)
city transportation picture, volume 13
page 92
railroad volume 11 page 20
trait (biology)
genes and eye color picture, volume 5
page 94
genetics volume 5 page 93
Trakai Castle (castle in Lithuania) picture,
volume 7 page 165
trampoline (tumbling equipment)
gymnastics volume 5 page 175
Transantarctic Mountains (mountains in
Antarctica)
Antarctica volume 1 page 135
Transcaucasian Soviet Federated Socialist
Republic (historical state in Eurasia)
Armenia volume 1 page 185
transcontinental railroad
railroad volume 11 page 21
Transilvania (region in Romania): see in
index Transylvania
transistor (electronics)
computer volume 3 page 173
electronics volume 4 page 123
Transjordan: see in index Jordan
transmigration (religious belief ): see in
index reincarnation
transmission (construction)
automobile volume 1 page 236, picture,
volume 1 page 235
transmitter (electronics)
radar volume 11 page 15
radio volume 11 page 19
telegraph volume 13 page 35
transplant (surgery)
MAIN ARTICLE volume 13 page 91
MORE TO EXPLORE
artificial hip joint picture, volume 13
page 91
hepatitis volume 6 page 42
transportation
MAIN ARTICLE volume 13 page 91, picture,
volume 13 page 92, picture, volume 13
page 93
MORE TO EXPLORE
technology and invention volume 13
page 27
Transportation, Department of (U.S.
government agency)
government executive departments
table, volume 14 page 35
Transylvania (region in Romania)
Romania volume 11 page 84
trapeze (circus act equipment): see in
index flying trapeze
treacle (syrup): see in index molasses
treason (crime)
crime volume 3 page 216
Treasure State (state in the U.S.): see in
index Montana
Treasury (tomb at Petra in Jordan) picture,
volume 7 page 34
Treasury, Department of the (U.S. government
agency)
government executive departments
table, volume 14 page 35
Treaty of: see in index under the specific
part of the name, for example, Versailles,
Treaty of
tree (woody plant)
MAIN ARTICLE volume 13 page 93, picture,
volume 13 page 94, picture, volume 13
page 94
MORE TO EXPLORE
bark volume 2 page 28, picture, volume 2
page 28
leaf: see in index leaf
mistletoe picture, volume 10 page 33
rain forest picture, volume 11 page 24
tree conservation replanting picture,
volume 3 page 187
wind picture, volume 15 page 48
tree climbing (locomotion): see in index
climbing
tree farm
agriculture volume 1 page 48
tree fern (plant)
tree volume 13 page 93
tree frog (amphibian)
green tree frog picture, volume 1
page 110
tree frog in the rain picture, volume 11
page 21
tree peony (plant)
peony volume 10 page 58
tree sloth (mammal): see in index sloth
tree squirrel (rodent)
squirrel volume 12 page 172
trembling aspen (tree): see in index quaking
aspen
262 track race BRITANNICA STUDENT ENCYCLOPEDIA
trench (marine geology)
ocean volume 9 page 118
trench warfare
WorldWar I volume 15 page 62, picture,
volume 15 page 63
Trent, Council of (Roman Catholicism)
Reformation volume 11 page 39
Trenton (state capital of New Jersey,
U.S.)
MAIN ARTICLE volume 13 page 95
MORE TO EXPLORE
New Jersey volume 9 page 49
State House picture, volume 13 page 95
Trenton and Princeton, Battles of (U.S.
War of Independence)
American Revolution volume 1
page 101
Trenton volume 13 page 95
Trevi Fountain (fountain in Rome, Italy)
picture, volume 11 page 87
Trevithick, Richard (British engineer)
railroad volume 11 page 21
technology and invention volume 13
page 27
triangle (mathematics)
geometry volume 5 page 98
Triassic period (geochronology)
dinosaur picture, volume 4 page 53
tributary (part of river system)
river volume 11 page 68
triceps muscle (anatomy)
skeletal muscle picture, volume 8
page 208
Triceratops (dinosaur genus)
MAIN ARTICLE volume 13 page 96, picture,
volume 13 page 96
MORE TO EXPLORE
dinosaur volume 4 page 51, picture, volume
4 page 53
trichinosis (disease)
parasite volume 10 page 33
trickle irrigation (agriculture): see in
index drip irrigation
trickster tale (folklore)
folktale volume 5 page 42
trident (weapon)
Poseidon volume 10 page 135, picture,
volume 10 page 135
trigon (mathematics): see in index triangle
trilobite (prehistoric marine animal)
prehistoric life volume 10 page 145
Trinidad and Tobago (island country in
theWest Indies)
MAIN ARTICLE volume 13 page 97
MORE TO EXPLORE
carnival celebration picture, volume 13
page 97
Port of Spain picture, volume 10
page 132
Trinity (Christian doctrine)
Christianity volume 3 page 112
Saint Patricks Day volume 12 page 15
Trinity College (university in Dublin,
Ireland): see in index Dublin, University
of
Triomphe, Arc de (arch in Paris, France):
see in index Arc de Triomphe
Triple Alliance (European alliance): see in
index Central Powers
Triple Entente (European alliance): see in
index Allied Powers
triple jump (athletics)
track and field volume 13 page 86, picture,
volume 13 page 85
Tripoli (capital city of Libya)
MAIN ARTICLE volume 13 page 98, picture,
volume 13 page 98
MORE TO EXPLORE
Libya volume 7 page 144, picture, volume
7 page 144
Triratna (Buddhism)
Buddhism volume 2 page 144
Triton (moon of Neptune)
Neptune volume 9 page 33
TrojanWar (ancient Greek legend and
history)
ancient Greece volume 5 page 154
Homer volume 6 page 76
trombone (musical instrument)
wind instruments picture, volume 8
page 217
Troodon (dinosaur)
dinosaurs in scale picture, volume 4
page 53
troop (scouting group)
scouting volume 12 page 54
tropical climate
climate volume 3 page 138
tropical cyclone (weather)
storm volume 12 page 192
tropical easterlies (air current): see in
index trade wind
tropical forest
forest in Seychelles picture, volume 5
page 54
tropical rain forest
biome volume 2 page 74
rain forest volume 11 page 23
South America volume 12 page 140
tropics volume 13 page 99
tropical zone (geography): see in index
tropics
Tropic of Cancer (geography): see in
index Cancer, Tropic of
Tropic of Capricorn (geography): see in
index Capricorn, Tropic of
tropics (geography)
MAIN ARTICLE volume 13 page 98
MORE TO EXPLORE
desert volume 4 page 40
rain forest picture, volume 11 page 24