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Nature,
April 24, 1913–

Nature

A WEEKLY

ILLUSTRATED JOURNAL OF SCIENCE

VOLUME XC

SEPTEMBER. 1912, to FEBRUARY, 1913

"To the solid ground

Of Nature trusts the mind which builds for aye."—WORDSWORTH

STANFORD LARS

London

MACMILLAN AND CO., LIMITED
NEW YORK: THE MACMILLAN COMPANY

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