ScienceJohn Michels (Journalist) 1957 |
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Стр. 173
... recent major advances in our understanding of the structure of collagen . The book covers the development of the field up to approximately the beginning of 1956. Subsequent progress has been so rapid that many very recent contributions ...
... recent major advances in our understanding of the structure of collagen . The book covers the development of the field up to approximately the beginning of 1956. Subsequent progress has been so rapid that many very recent contributions ...
Стр. 195
... recent standard easily we use carbon dioxide from a Na2CO3 - solution with a specific carbon - 14 content roughly 10 times that of recent wood . Table 2 contains some measurements on modern plants . As in Table 1 , the percentage ...
... recent standard easily we use carbon dioxide from a Na2CO3 - solution with a specific carbon - 14 content roughly 10 times that of recent wood . Table 2 contains some measurements on modern plants . As in Table 1 , the percentage ...
Стр. 1254
... recent research in elementary science education , " Jacqueline Buck Mallinson , Western Michigan University ; " Implications of the findings of recent research in elementary science education , " Muriel Beuschlein , Chicago Teachers ...
... recent research in elementary science education , " Jacqueline Buck Mallinson , Western Michigan University ; " Implications of the findings of recent research in elementary science education , " Muriel Beuschlein , Chicago Teachers ...
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First geological map of Asia 1172 | 1 |
3262 | 9 |
viii | 31 |
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