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
THE SCIENCE PKESS
Lancaster, pa. garrison, n. y.
NEW YORK: Sub-Station 84
Sengue Number, 30 Cents Yearly Subscription, $3.00
Copteight, 1908, BT THE SCIENCE PRESS
[[Category:Not transcluded
