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Word: periodical (lookup in dictionary) (lookup stats)
Dates: during 1930-1939
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Usage:

...have seen the same statement made independently at a more recent time that great international crises, such as wars, peace treaties, and other evidences of international amity or friction, follow the period of sunspot activity with some fidelity...

Author: NO WRITER ATTRIBUTED | Title: Harvard Astronomer Ties Up Sunspot Activity With International Crises and Stock Markets | 5/1/1936 | See Source »

...speaks Loring B. Andrews '25, instructor in Astronomy, in the May 1 Alumni Bulletin. His thesis is that ultraviolet radiation may affect not only plants, trees, and over a period of years the earth, but also that it has a direct effect on the bodies and minds of humans...

Author: NO WRITER ATTRIBUTED | Title: Harvard Astronomer Ties Up Sunspot Activity With International Crises and Stock Markets | 5/1/1936 | See Source »

Sunspot activity is a stimulant to human behavior, perhaps also an irritant. In 1928, the "good old days" there was a period of maximum sunspottedness when a maximum amount of ultra-violet was being ejected to the earth...

Author: NO WRITER ATTRIBUTED | Title: Harvard Astronomer Ties Up Sunspot Activity With International Crises and Stock Markets | 5/1/1936 | See Source »

...which can be filled by them, owing to life-appointments already held, for example, to justify their retention if they are not of the highest possible calibre. For it is not compatible with the policy of the Administration to keep a man as tutor or instructor for a long period of years, and then dismiss him if he is not to be promoted...

Author: NO WRITER ATTRIBUTED | Title: TEACHING VS. RESEARCH | 4/30/1936 | See Source »

Specialization in any period or genre of music has been difficult in the past except for the exceptional student. Next year, following Music 1, perquisite for concentrators, special courses are devoted to (1) periods and countries, (2) styles and mediums, (3) forms, and (4) individual composers. There is only one course listed under each of these headings, however, so that men for the coming year will still have a fairly limited approach to the subject matter. It is understood, however, that in the following year alternate courses will be given to fill out each of the above categories. This scarcity...

Author: NO WRITER ATTRIBUTED | Title: Fields of Concentration | 4/29/1936 | See Source »

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