Nature, Količina 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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Zadetki 1–3 od 87
Stran 119
... possible over the present haphazard methods . In practice nitrogen is always lost through exposure to weather , greatly to the detriment of the manure . The provision of some shelter for the heap is not difficult , and , as Prof. Berry ...
... possible over the present haphazard methods . In practice nitrogen is always lost through exposure to weather , greatly to the detriment of the manure . The provision of some shelter for the heap is not difficult , and , as Prof. Berry ...
Stran 162
... possible to reach the northern ridge of Mount Everest . Soft snow and warm weather prevented any further ad- vance , so that efforts were concentrated on preparing a base as high as possible . With this end in view a camp was ...
... possible to reach the northern ridge of Mount Everest . Soft snow and warm weather prevented any further ad- vance , so that efforts were concentrated on preparing a base as high as possible . With this end in view a camp was ...
Stran 311
... possible connection between absorption and chemical constitution . The work of Hartley , Dobbie , and others showed that in certain cases it was possible to determine the constitution of substances from observations of their absorption ...
... possible connection between absorption and chemical constitution . The work of Hartley , Dobbie , and others showed that in certain cases it was possible to determine the constitution of substances from observations of their absorption ...
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