 ... twice, one-half, one-third, one-fourth, etc., the length of the primary. (2) The periods in different parts of the world have different phases, as, for example, in the annual period it is cold in the northern hemisphere when it is warm in the southern,...  Proceedings of the American Academy of Arts and Sciences - 586 ページAmerican Academy of Arts and Sciences 著 - 1899全文表示 - この書籍について
 | United States. Office of Experiment Stations - 1900 - 1320 ページ
...harmonics to the primary; that is, their lengths are twice, one-half, one-third, one-fourth, etc., the length of the primary. (2) The periods in different...northern hemisphere when it is warm in the southern, and in the sun-spot period it is dry in Russia when it is wet in India. (3) At any given place on the earth's... | |
 | United States. Office of Experiment Stations - 1900 - 1144 ページ
...lengths are twice, one-half, one-third, one-fourth, etc., the length of the primary. (2) The période in different parts of the world have different phases,...northern hemisphere when it is warm in the southern, and in the sun-spot period it is dry in Russia when it is wet in India. (3) At any given place on the earth's... | |
 | United States. Office of Experiment Stations - 1900 - 1374 ページ
...harmonics to the primary; that is, their lengths nre twice, one-half, one-third, one-fourth, etc., the length of the primary. (2) The periods in different parts of the world hare different phases, as, for example, in tb» »nnu.il period it is cold in the northern hemisphere... | |
 | 1899 - 870 ページ
...harmonics to the primary, that is, their lengths are twice, one half, one third, one fourth, etc., the length of the primary. (2) The periods in different...northern hemisphere when it is warm in the southern, and in the sunspot period it is dry in Russia when it is wet in India. (3) At any given place on the earth's... | |
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