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Vol. LXXII. No. 1. JANUARY, 1908

THE

POPULAR SCIENCE MONTHLY.

EDITED BY J. McKEEX CATTELL

CONTENTS

The Institute of France and other Learned Scientific Societies. Dr. Ed- ward F. Williams 5

The Grayling at Caribou Crossing : President David Starr Jordan. . 23

What is Matter? Dr. S. E. Mezes 28

Farm Tenancy, a Problem in American Agriculture. Professor Homer

C. Price 40

Some Recent Transmutations. Professor Charles Baskerville. . . 46

The Rule of the Road. Dr. George M. Gould 52

Gold. H. F. Wagenen 65

How shall we improve our Race ? Dr. Gustave Michatjd 75

A Trip around Iceland. L. P. Gratacap 79

The Progress of Science :

The Convocation Week Meeting at Chicago ; A Statue of Joseph Leidy ; Scientific Items 91

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