The New Encyclopaedia Britannica, Volumes 1-10Encyclopaedia Britannica, 1974 - Reference [1] Propaedia: outline of knowledge and guide to the Britannica.--[2]-[11] Micropaedia: ready reference and index.--[12]-[30] Macropaedia: knowledge in depth. |
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Page 481
... Sources and Products ( Ma.Ha. ) Since prehistory man has survived on a diet consisting of a relatively few species of plants and animals that he do- mesticated so long ago that their origins are forgotten . Three cereals - wheat , rice ...
... Sources and Products ( Ma.Ha. ) Since prehistory man has survived on a diet consisting of a relatively few species of plants and animals that he do- mesticated so long ago that their origins are forgotten . Three cereals - wheat , rice ...
Page 734
... sources of the anions are different from the sources of the cations . The bicarbonate ion is supplied chiefly by plant - root respiration ; its source is thus , in- directly , the Earth's atmosphere . Mineral sources must be sought for ...
... sources of the anions are different from the sources of the cations . The bicarbonate ion is supplied chiefly by plant - root respiration ; its source is thus , in- directly , the Earth's atmosphere . Mineral sources must be sought for ...
Page 832
... SOURCES , Astro- NOMICAL ) . Australian radio astronomers in 1949 pin- pointed three of the discrete sources with sufficient ac- curacy to make reasonably certain their correspondence with three optically known celestial objects ...
... SOURCES , Astro- NOMICAL ) . Australian radio astronomers in 1949 pin- pointed three of the discrete sources with sufficient ac- curacy to make reasonably certain their correspondence with three optically known celestial objects ...
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The New Encyclopaedia Britannica, Volumes 1-10 Encyclopaedia Britannica Publishers, Inc. Staff No preview available - 1974 |
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