Afghanistan	1463
Africa	9198
Africa, Central	391
Africa, Eastern	978
Africa, French-speaking Equatorial	107
Africa, North	5871
Africa, Northeast	74
Africa, Southern	1032
Africa, Sub-Saharan	1309
Africa, West	1302
Alabama	1248
Alaska	3119
Albania	586
Alberta	518
Algeria	2192
Alps	303
Amazon River	327
American Samoa	75
Amur River (China and Russia)	28
Andes	508
Andorra	19
Angola	417
Anhui Sheng (China)	568
Antarctic Ocean; Antarctica	1252
Antarctica	81
Antigua and Barbuda	26
Antilles, Lesser	98
Appalachian Mountains	381
Arab countries	6823
Arabian Peninsula	829
Arabian Sea	32
Arctic Ocean; Arctic regions	1508
Argentina	9140
Arizona	2010
Arkansas	946
Armenia (Republic)	3096
Asia	9032
Asia, Central	1778
Atlantic Ocean	504
Australasia	204
Australia	8457
Austria	7967
Azerbaijan	1310
Azores	69
Bahamas	128
Bahrain	149
Balkan Peninsula	1780
Baltic States	581
Bangladesh	4172
Barbados	108
Beijing (China)	1158
Belarus	2130
Belgium	3982
Belize	184
Benelux countries	135
Bengal, Bay of	22
Benin	235
Bermuda Islands	136
Bhutan	184
Black Sea	219
Bo Hai (China)	13
Bolivia	1944
Borneo	164
Bosnia and Hercegovina	750
Botswana	331
Brazil	9763
British Columbia	1350
British Virgin Islands	20
Brunei	136
Bulgaria	4785
Burkina Faso	229
Burma	2418
Burundi	135
California	14022
Cambodia	964
Cameroon	632
Canada	15775
Canal Zone	131
Canary Islands	268
Cape Verde	65
Caribbean Area; Caribbean Sea	1891
Caroline Islands	56
Caspian Sea	76
Caucasus	669
Caucasus, Northern (Russia)	179
Cayman Islands	17
Central African Republic	83
Central America	1590
Central Chernozem Region (Russia)	18
Central Region, RSFSR	26
Chad	157
Chile	3939
China	72936
Chongqing (China)	41
Colombia	3292
Colorado	2307
Commonwealth countries	433
Communist countries	131
Comoros	32
Congo (Brazzaville)	169
Congo (Democratic Republic)	1017
Congo River	17
Connecticut	1760
Cook Islands	93
Costa Rica	866
Croatia	1241
Cuba	4395
Curaçao (Netherlands Antilles)	39
Cyprus	785
Czech Republic	2548
Czechoslovakia	6159
Côte d'Ivoire	399
Danube River	108
Delaware	475
Denmark	3512
Developed countries	38
Developing countries	6118
Djibouti	37
Dominica	30
Dominican Republic	1172
Earth	34
East (U.S.)	23
East Asia	3085
East China Sea	36
East Timor	56
Easter Island	37
Ecuador	1505
Egypt	10266
El Salvador	527
England	19465
Equatorial Guinea	78
Eritrea	82
Estonia	1214
Ethiopia	1127
Eurasia	137
Europe	31759
Europe, Central	1103
Europe, East Central	146
Europe, Eastern	5148
Europe, Northern	408
Europe, Southern	137
Europe, Western	3109
Falkland Islands	160
Faroe Islands	45
Fiji	648
Finland	2594
Florida	2315
France	46134
French Community	12
French Guiana	130
French Polynesia	223
Fujian Sheng (China)	787
Gabon	134
Galapagos Islands	63
Gambia	98
Gansu Sheng (China)	547
Gaza Strip	286
Georgia	1763
Georgia (Republic)	1355
Germany	41300
Germany (East)	4875
Germany (West)	14309
Ghana	983
Gibraltar	58
Gilbert and Ellice Islands	39
Great Britain	46933
Great Britain Miscellaneous Island Dependencies	53
Great Lakes (North America); Lake States	1009
Great Plains	546
Great Rift Valley	15
Greece	10847
Greenland	399
Grenada	68
Guadeloupe	111
Guam	195
Guangdong Sheng (China)	1430
Guangxi Zhuangzu Zizhiqu (China)	524
Guatemala	1123
Guinea	182
Guinea-Bissau	104
Guizhou Sheng (China)	528
Guyana	257
Hainan Sheng (China)	48
Haiti	779
Hawaii	1791
Hebei Sheng (China)	812
Heilongjiang Sheng (China)	395
Henan Sheng (China)	813
Himalaya Mountains	432
Hispaniola	39
Honduras	417
Hong Kong	1099
Hong Kong (China)	653
Hubei Sheng (China)	571
Hudson Bay	27
Hunan Sheng (China)	711
Hungary	6264
Iberian Peninsula	120
Iceland	711
Idaho	1308
Illinois	4650
India	74516
Indian Ocean	513
Indiana	2091
Indochina	467
Indonesia	19543
Inner Mongolia (China)	533
Intercontinental areas (Eastern Hemisphere)	14
Intercontinental areas (Western Hemisphere)	62
Iowa	1230
Iran	7018
Iraq	3322
Ireland	5883
Israel	13069
Italy	46065
Jamaica	473
Japan	85101
Jiangsu Sheng (China)	1385
Jiangxi Sheng (China)	809
Jilin Sheng (China)	322
Jordan	1167
Kansas	1232
Kazakhstan	1758
Kentucky	1503
Kenya	1318
Kiribati	122
Korea	11648
Korea (North)	2177
Korea (South)	10343
Kuwait	556
Kyrgyzstan	778
Laos	681
Latin America	10040
Latvia	1156
Lebanon	2672
Lesotho	202
Liaoning Sheng (China)	426
Liberia	306
Libya	593
Liechtenstein	70
Lithuania	1542
Louisiana	1720
Luxembourg	213
Macao	153
Macau (China : Special Administrative Region)	90
Macedonia (Republic)	373
Madagascar	554
Madeira Islands	40
Maine	1491
Malawi	369
Malaya	458
Malaysia	4599
Maldives	42
Mali	333
Malta	192
Manitoba	417
Mariana Islands	127
Maritime Provinces	158
Mars	11
Marshall Islands	172
Martinique	133
Maryland	2135
Massachusetts	6387
Mauritania	127
Mauritius	247
Mediterranean Region; Mediterranean Sea	2443
Mekong River	86
Melanesia	196
Mexico	14715
Mexico, Gulf of	270
Michigan	10448
Micronesia	161
Micronesia (Federated States)	165
Middle Atlantic States	240
Middle East	9433
Middle West	913
Midway Islands	17
Minnesota	2393
Mississippi	1009
Mississippi River	542
Missouri	1692
Missouri River	108
Moldova	804
Monaco	48
Mongolia	1068
Montana	1364
Moon	16
Morocco	2760
Mozambique	347
Namibia	542
Nauru	18
Nebraska	702
Nepal	3094
Netherlands	6950
Netherlands Antilles	68
Nevada	1210
New Brunswick	238
New Caledonia	294
New England	1688
New Guinea	175
New Hampshire	1194
New Jersey	2447
New Mexico	2179
New South Wales	596
New York	15791
New Zealand	3029
Newfoundland and Labrador	381
Nicaragua	910
Niger	198
Niger River	36
Nigeria	3075
Nile River	109
Ningxia Huizu Zizhiqu (China)	182
Niue	25
North America	6709
North Atlantic Ocean	763
North Carolina	2919
North Dakota	649
North Pacific Ocean	427
Northeastern States	483
Northern Hemisphere	21
Northern Ireland	1697
Northern Territory	139
Northwest (U.S.)	411
Northwest Territories	365
Norway	3708
Nova Scotia	482
Nunavut	27
Oceania	1841
Ohio	2771
Ohio River	191
Okinawa	12
Oklahoma	934
Oman	208
Ontario	2176
Oregon	2458
Outer space	19
Pacific Ocean	2973
Pakistan	7685
Palau	136
Panama	655
Papua New Guinea	1840
Paraguay	840
Pennsylvania	5119
Persian Gulf	660
Peru	4387
Philippines	7755
Pitcairn Island	22
Poland	19505
Polynesia	210
Portugal	4641
Portuguese Timor	14
Prairie Provinces	185
Prince Edward Island	65
Puerto Rico	1676
Pyrenees	47
Qatar	77
Qinghai Sheng (China)	247
Queensland	410
Québec (Province)	3531
Red Sea	120
Rhine River	124
Rhode Island	938
Rio de la Plata (Argentina and Uruguay)	54
Rocky Mountains	289
Romania	4510
Russia (Federation)	23389
Russia. Russian Empire. Soviet Union. Former Soviet Republics	50036
Russian Far East (Russia)	780
Rwanda	290
Réunion	108
Sahara	237
Saint Helena	23
Saint Kitts and Nevis	15
Saint Lucia	28
Saint Vincent and the Grenadines	13
Samoa	178
Samoan Islands	78
San Marino	42
Sao Tome and Principe	34
Saskatchewan	291
Saudi Arabia	1714
Scandinavia	1454
Scotland	4202
Senegal	495
Serbia	79
Serbia and Montenegro; Yugoslavia	10626
Seychelles	53
Shaanxi Sheng (China)	737
Shandong Sheng (China)	933
Shanghai (China)	1181
Shanxi Sheng (China)	651
Siberia (Russia)	2605
Siberia, Eastern (Russia)	228
Siberia, Western (Russia)	155
Sichuan Sheng (China)	1104
Sierra Leone	241
Sikkim	33
Singapore	1695
Slovakia	1012
Slovenia	695
Solar system	15
Solomon Islands	385
Somalia	283
South Africa	5145
South America	3791
South Asia	1240
South Atlantic Ocean	80
South Australia	219
South Carolina	1543
South Dakota	804
South Pacific Ocean	192
Southeast Asia	4093
Southern Hemisphere	18
Southern States	4147
Southwest, New	1359
Soviet Central Asia	456
Soviet Union, Northwestern	104
Spain	26221
Spanish North Africa	17
Spratly Islands	21
Sri Lanka	3492
Sudan	1127
Sudan (Region)	78
Suez Canal (Egypt)	66
Suriname	182
Svalbard (Norway)	17
Swaziland	98
Sweden	6048
Switzerland	5024
Syria	2235
Taiwan	10013
Tajikistan	468
Tanzania	1024
Tasmania	250
Tennessee	1502
Texas	4009
Thailand	11980
Thailand, Gulf of	32
Tianjin (China)	129
Tibet (China)	1686
Tien Shan	63
Togo	138
Tokelau	23
Tonga	174
Trinidad and Tobago	241
Tristan da Cunha	12
Tropics	837
Tunisia	1267
Turkey	17709
Turkmenistan	654
Tuvalu	41
Uganda	641
Ukraine	6875
United Arab Emirates	162
United States	252329
United States Miscellaneous Pacific Islands	27
Ural Mountains (Russia)	525
Uruguay	1676
Utah	1552
Uzbekistan	1467
Vanuatu	370
Vatican City	345
Venezuela	2602
Vermont	1042
Victoria	291
Viet Nam, North	145
Viet Nam, South	195
Vietnam	8926
Virgin Islands of the United States	149
Virginia	3306
Volga River (Russia)	151
Volgo-Viatskii Region, RSFSR	21
Wales	1276
Wallis and Futuna Islands	16
Washington (D.C.)	2530
Washington (State)	2555
West (U.S.)	3562
West Bank	471
West Indies	822
West Virginia	981
Western Australia	395
Western Hemisphere	87
Western Sahara	67
Windward Islands (West Indies)	15
Wisconsin	8712
Wyoming	1221
Xinjiang Uygur Zizhiqu (China)	691
Yangtze River (China)	181
Yellow River (China)	79
Yellow Sea	28
Yemen (People's Democratic Republic)	70
Yemen (Republic)	822
Yukon Territory	233
Yunnan Sheng (China)	981
Zambezi River	13
Zambia	490
Zhejiang Sheng (China)	1110
Zimbabwe	838
f Paracel Islands	108
Total volumes: 1624608