9. How are the storms distributed over the
United States in the course of a year?

Refer to the file of Weather Bureau Maps,
and

Consider:

(a) The tracks pursued by the storms

across the country: from the N.-W.;
from the S.-W; from the S. and S.-E.
(b) The rainfall of each; the changes of

temperature, clouds, etc.
(c) The area that has been reached by

snow, during the year.
(d) The area that has been reached by

frost, during the year.
(e) The areas reached by rain, that caused

floods.
(f ) The areas of greatest drouths.
(g) The points of extremely high temper-

ature; low temperature.
392



NATURE STUDY FOR



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THE GRAMMAR GRACES. 393

NUMBER WORK.
