Back MatterSource: The Scientific Monthly, Vol. 51, No. 3 (Sep., 1940), pp. v-viPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/17295 .

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THE SCIENTIFIC MONTHLY-ADVERTISEMENTS v

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vi THE SCIENTIFIC MONTHLY-ADVERTISEMENTS

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(1) You cannot afford to miss even one important development in your own field, or an allied field of science.

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