Abyssinia 57, 72, 118; PI. 10 Adigrat Sandstones 72 African Geological
INDEX Abyssinia 57, 72, 118; PI. 10 Borges, A. 14, 16, 21, 40, 74, 146, 165 Adigrat sandstones 72 "Botletle Schichen" (Kalahari) 27 African Geological Surveys (1931) 72 Boutakoff, N. 116, 120, 121, 122, 124, 152, Albert Nyanza: see Lake Albert 165, 166; PI. 8 (115) Albertville, Belgian Congo 86, 102, 121; Pis. Brazil 156; fig. 8 (149) 1, 7 (91), PI. 10 Brazzaville, French Equatorial Africa 65; Amazon Basin 157; flg. 8 (149) Pl. 1 ancient rivers: see Triassic Brien, V. 28, 166 Andrada Post, Angola 36, 56; flgs. 3 (54), Brito Godins, Angola 142, 143; flg. 7 (138) 4 (55) Bulawayo, Southern Rhodesia 28 Andrew, A. R. 137, 165 Bungongo, Belgian Congo 132, 133; Pl. 1 Andrews, C. W. 24, 165 Bushimaie diamond fields 9, 158, 159 Angola 1, 2, 10, 14, 21, 23, 28, 29, 30, 31, 83, Triassie rivers of 57-61, 144, 153; PI. 5 (60) 88, 40, 43, 50, 53, 56, 70, 139-146, 153 Bushimaie region, Belgian Congo 62, 65, 71, 161, 163; flgs. 3 (54), 7 (138); Pi. 1 158, 159 — coastal plain 29 — River, 45, 46, 58, 59, 69, 90, 159; PI. 2 — diamond fields 2, 53; see Kasai-Lunda Bushveld amygdaloid basalts (Transvaal) Antarctic continent 7, 155 74; PI. 9 Aptian 29, 30, 68 — intrusion 159 Arctic regions 118 Busindi Fault, Belgian Congo 109; PI. 7 (91) Argentina 157; fig. 8 (149) Buta, Belgian Congo 122, 133, 135; Pis. 1, 10 arid to semi-arid climate Buttgenbach, H. 82, 83, 166 poorly sorted deposits 5, 11, 29, 47, 48, 50, 54, 57-58, 71, 86, 151, 158, 163 Cabatuquila, Angola 142; flg.
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