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Every Life Process Governed by Enzymes and Vitamins

Shell “Sees” Target and Explodes before It Strikes

Tuberculosis Increasing in War Torn Europe

New Machines and Gadgets

Physician Doubts Statement of Vitamin Deficiency

Science Service Backs Science Clubs Movement

Study Reveals How Spain Defended Early America

Electric Shock Treatment Causes Partial Memory Loss

[Photograph]: For Aluminum

Lights of the Arctic Sky

Psychology’s Many Schools All Logically Feasible

All outside Universes Are Composed of Stars