irrigation volume 6 page 161
drive shaft (construction)
automobile volume 1 page 236
dromedary (camel) picture, volume 3
page 19
camel volume 3 page 19
drone (insect caste)
bee volume 2 page 46
dropped goal (sports)
rugby volume 11 page 103
drought (shortage of rain)
MAIN ARTICLE volume 4 page 77, picture,
volume 4 page 78
drug (chemical agent)
MAIN ARTICLE volume 4 page 78
drug abuse
drug volume 4 page 79
druggist (physiology): see in index pharmacy
Druid (ancient Celtic order)
Celts volume 3 page 68
drum (musical instrument)
musical instruments volume 8 page 215
drupe (botany)
nut volume 9 page 112
dry fruit (botany)
fruit volume 5 page 72
DTV (television): see in index digital TV
Duarte Peak (mountain in Dominican
Republic)
Dominican Republic volume 4 page 66
Dubcek, Alexander (Slovak statesman)
Czechoslovakia volume 3 page 238
Dublin (capital city of Ireland)
MAIN ARTICLE volume 4 page 79
MORE TO EXPLORE
Cork Hill with Dublin Castle picture,
volume 4 page 80
Ireland volume 6 page 154
Dublin, University of (university in
Dublin, Ireland)
Dublin volume 4 page 79
Dublin Castle (castle in Dublin, Ireland)
Cork Hill with Dublin Castle picture,
volume 4 page 80
Du Bois,W. E. B. (U.S. sociologist and
reformer)
MAIN ARTICLE volume 4 page 80, picture,
volume 4 page 80
MORE TO EXPLORE
African Americans volume 1 page 43
civil rights movement volume 3
page 129
leaders with Du Bois picture, volume 3
page 129
Washington volume 15 page 17
Dubrovnik (city in Croatia)
beach picture, volume 3 page 218
harbor picture, volume 6 page 17
duck (bird)
MAIN ARTICLE volume 4 page 81
MORE TO EXPLORE
adaptation picture, volume 1 page 27
goose volume 5 page 127
mandarin duck picture, volume 4
page 81
74 dove BRITANNICA STUDENT ENCYCLOPEDIA
duckbill (mammal): see in index platypus
dugout (baseball)
baseball field picture, volume 2 page 31
Duluth (city in Minnesota, U.S.)
Saint Lawrence River and Seaway volume
12 page 13
Duma (Russian government assembly)
Nicholas II volume 9 page 65
Russian Revolution volume 11 page 108
Dunant, Henri (Swiss humanitarian)
Red Cross and Red Crescent volume 11
page 36
Duncan, Isadora (U.S. dancer)
MAIN ARTICLE volume 4 page 82, picture,
volume 4 page 82
MORE TO EXPLORE
dance volume 4 page 13
dune: see in index sand dune
DuPont Company (U.S. company)
Delaware volume 4 page 30
Duquesne, Fort (historic fort in Pittsburgh,
Pennsylvania, U.S.)
French and IndianWar volume 5
page 66
Durbar Square (square in Kathmandu,
Nepal) picture, volume 7 page 50
Duryea, Charles E. (U.S. inventor)
automobile volume 1 page 237
Duryea, J. Frank (U.S. inventor)
automobile volume 1 page 237
Du Sable, Jean-Baptist-Point (African
American pioneer)
MAIN ARTICLE volume 4 page 83, picture,
volume 4 page 83
MORE TO EXPLORE
Chicago volume 3 page 93
Illinois volume 6 page 118
Dushanbe (capital city of Tajikistan)
MAIN ARTICLE volume 4 page 83
MORE TO EXPLORE
monument in Dushanbe picture, volume
4 page 83
Tajikistan volume 13 page 10
Dust Bowl (historic region in the U.S.)
MAIN ARTICLE volume 4 page 84, picture,
volume 4 page 84
MORE TO EXPLORE
Kansas volume 7 page 48
Oklahoma volume 9 page 130
dust storm (weather)
storm volume 12 page 192
Dutch elm disease (fungus)
elm volume 4 page 128
Dutch Republic (historical state in
Europe): see in index Netherlands,
United Provinces of the
DVD (digital recording media): see in
index digital videodisc
DVR (electronic device): see in index digital
video recorder
dwarf crocodile (reptile)
crocodile volume 3 page 220
dwarf lantern shark (shark species)
shark volume 12 page 76
dwarf planet (astronomy)
Pluto picture, volume 10 page 101
solar system volume 12 page 128
dwelling: see in index castle; house; igloo;
longhouse; palace; tepee
E (galaxy): see in index elliptical galaxy
eagle (bird)
MAIN ARTICLE volume 4 page 86
MORE TO EXPLORE
bald eagle picture, volume 4 page 86
ear (anatomy)
MAIN ARTICLE volume 4 page 86, picture,
volume 4 page 87, picture, volume 4
page 87
MORE TO EXPLORE
deafness volume 4 page 21
ear canal (anatomy)
ear volume 4 page 87, picture, volume 4
page 87
eardrum (anatomy)
ear volume 4 page 87, picture, volume 4
page 87
eared seal (mammal)
sea lion picture, volume 12 page 59
seal volume 12 page 59
Earhart, Amelia (U.S. aviator)
MAIN ARTICLE volume 4 page 88, picture,
volume 4 page 88
earless seal (mammal)
seal volume 12 page 59, picture, volume
12 page 59
Early Christian art
sculpture volume 12 page 56
Early Cretaceous Epoch (geochronology)
dinosaurs picture, volume 4 page 53
Early Stone Age (anthropology): see in
index Paleolithic Period
Earth (planet)
MAIN ARTICLE volume 4 page 89, picture,
volume 4 page 90
MORE TO EXPLORE
astronomy
asteroid volume 1 page 213
aurora volume 1 page 227
eclipse volume 4 page 97, picture, volume
4 page 98
MilkyWay picture, volume 8 page 129
Moon: see in index Moon
Neptune picture, volume 9 page 33
planets volume 10 page 92, picture,
volume 10 page 93
solar system volume 12 page 127, picture,
volume 12 page 127
Sun volume 12 page 202
attraction with Moon picture, volume 5
page 144
climate volume 3 page 137
equator volume 4 page 147, picture, volume
4 page 147
geology and geography volume 5
page 97