Published: 1974-10-01

Article

Do recent climatic fluctuations portend an imminent ice age?

Hurd C. Willett

265-302

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Climate models and variations in the solar constant

William D. Sellers

303-315

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Sidereal cosmic ray variation and its relation with the interplanetary magnetic field polarity

Javier A. Otaola

317-328

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Radiometric determination of uranium, thorium and potassium in some rocks of the Guanajuato Mineral district, México

Surendra Pal, David Jorge Terrell, Emilio Herrero Bervera

329-335

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