Nature, Volume 108Sir Norman Lockyer Macmillan Journals Limited, 1921 |
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Página 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 ...
Página 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 ...
Página 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 ...
Índice
Cusack Dr J The Arithmetic of the Decimal System 174 Doyle K D Agriculture and Irrigation in Continental | 7 |
BarrettHamilton and M A C Hinton Part | 21 |
Grandidier A obituary 286 Hamilton G H Observations of Mars at Flagstaff 447 | 32 |
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