The New Encyclopædia Britannica in 30 Volumes: Macropædia : Knowledge in Depth. - 19 Bd, Volumes 1-19Encyclopædia Britannica, 1974 |
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Page 289
... percent , of calcium 3.6 percent , of potassi- an irregularly weathered bedrock surface . In hilly counum 2.6 percent , and of magnesium 2.1 percent . try , residual phosphate deposits are narrow and conform Thus , when phosphorus is ...
... percent , of calcium 3.6 percent , of potassi- an irregularly weathered bedrock surface . In hilly counum 2.6 percent , and of magnesium 2.1 percent . try , residual phosphate deposits are narrow and conform Thus , when phosphorus is ...
Page 824
... percent ) than of them resemble Australian Aborigines in appearance , nearly all Negroes . They also have a 40 percent frequen- but all have woolly hair , brown skins ( some of which are cy of the gamma globulin gene HL - A , elsewhere ...
... percent ) than of them resemble Australian Aborigines in appearance , nearly all Negroes . They also have a 40 percent frequen- but all have woolly hair , brown skins ( some of which are cy of the gamma globulin gene HL - A , elsewhere ...
Page 840
... percent of Portuguese farms , occupying 39 percent of the cultivated area , have more than 494 acres ; only three have more than 37,000 acres . As well as the problem of farm size , there is also that of land fragmentation . Although ...
... percent of Portuguese farms , occupying 39 percent of the cultivated area , have more than 494 acres ; only three have more than 37,000 acres . As well as the problem of farm size , there is also that of land fragmentation . Although ...
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