weather and the ultra-violet radiations of the sun

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' 1912 Nature Publishing Group

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Page 1: Weather and the Ultra-violet Radiations of the Sun

© 1912 Nature Publishing Group

Page 2: Weather and the Ultra-violet Radiations of the Sun

© 1912 Nature Publishing Group

Page 3: Weather and the Ultra-violet Radiations of the Sun

© 1912 Nature Publishing Group