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Strona 19
In some cases it has beer possible to trace the magnetic disturbances on the
surface of the earth , and auroras , to such violent disturbances on the sun . The
sun presumably ejects charged particles which , after some time reach the earth .
In some cases it has beer possible to trace the magnetic disturbances on the
surface of the earth , and auroras , to such violent disturbances on the sun . The
sun presumably ejects charged particles which , after some time reach the earth .
Strona 26
... two points need attention drawn to them : in the first place , it must be
remembered that such compounds should only be used during a fallow , and that
the time elapsing before safe sowing is possible should be ascertained by actual
trial ...
... two points need attention drawn to them : in the first place , it must be
remembered that such compounds should only be used during a fallow , and that
the time elapsing before safe sowing is possible should be ascertained by actual
trial ...
Strona 29
In conference it was recommended that a co - operative organisation
representative , so far as possible , of all physics should be formed at once , and
the material help of the Chemical Foundation in such a project was promised .
Notices of ...
In conference it was recommended that a co - operative organisation
representative , so far as possible , of all physics should be formed at once , and
the material help of the Chemical Foundation in such a project was promised .
Notices of ...
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