Page:Popular Science Monthly Volume 72.djvu/597

 Vol. LXXII. No. 5- MAY, 1908

THE

POPULAR SCIENCE MONTHLY.

EDITED BY J. McKEEN CATTELL CONTENTS

Some New View Points in Nutrition. Professor Etjssell H. Chittenden 385 The Utilization of Auxiliary Entomophagous Insects in the Struggle

against Insects Injurious to Agriculture. Professor Paul March al 406

Of the Soil of the Earth. Spencer Trotter 420

The Conservation of the Great Marine Vertebrates : — Imminent Destruc- tion of the Wealth of the Seas. Dr. G. R. Wieland 425

The Whiter Pittsburgh. John F. Cargill 431

The Education of the Colored Race is the Duty of the Nation. Professor

Harris Hancock 452

Should Psychology supervise Testimony? Fabian Franklin .... 465 The Progress of Science :

The Carnegie Foundation for the Advancement of Teaching and the State Universi- ties; The Vegetation of the Salton Sea; John Samuel Budgett; Scientific Items. 475

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