The New Encyclopædia BritannicaEncyclopædia Britannica, 1983 - Encyclopedias and dictionaries |
From inside the book
Results 1-3 of 43
Page 276
... copper and some gold . In Rhodesia alone there are more than 1,100 prehistoric gold mines and 150 copper mines , associated predominantly with Leopard's Kopje II , while in the Transvaal there are literally thousands of prehistoric iron ...
... copper and some gold . In Rhodesia alone there are more than 1,100 prehistoric gold mines and 150 copper mines , associated predominantly with Leopard's Kopje II , while in the Transvaal there are literally thousands of prehistoric iron ...
Page 292
... copper companies were the Anglo American Corporation of South Africa and the Rhode : sian ( later Roan ) Selection Trust , with mainly American capital . Though production slumped during the Great Depres- sion , by 1935 the copper mines ...
... copper companies were the Anglo American Corporation of South Africa and the Rhode : sian ( later Roan ) Selection Trust , with mainly American capital . Though production slumped during the Great Depres- sion , by 1935 the copper mines ...
Page 789
... copper deposits . Molybdenite is also a source of rhenium and germanium , both elements that occur as trace metals ... copper , are representative of this type . The other two , maucherite , Ni1Ass , and umangite , Cu , Se2 , are rare ...
... copper deposits . Molybdenite is also a source of rhenium and germanium , both elements that occur as trace metals ... copper , are representative of this type . The other two , maucherite , Ni1Ass , and umangite , Cu , Se2 , are rare ...
Other editions - View all
Common terms and phrases
19th century acoustic African agricultural America Angola animals architecture Asian Bolivia Brazil British Buddha Buddhist Burma Burmese Cambodia Cape carved central centre Chinese classical coast Colombia colonial court culture dance drama early east eastern economic European example figures forest frequency groups hertz Hindu images important India Indonesia industrial influence instruments Javanese Khmer king kingdom labour land language literature major ment metres mountain movement Mughal Muslim nāga northern organization painting Pāli pattern percent performance period Peru plays poets political population Portuguese produced rāga Rāmāyaṇa range recording region religious republics river Sanskrit sculpture shrines social sonata sonata form sound waves South Africa South Indian Southeast Asia southern sovereignty Soviet śrutis structure stupa style Tamil temple territory Thailand theatre tion tones trade tradition tribes ture urban Urdu velocity vibrations Vietnam village wayang West Western yakṣa