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In Science Fields

Pioneer Plants Grow on Sterile Volcanic Ash

Vitamin D Found to Hasten Formation of Blood Clot

Christmas Trees Are of Many Varieties

Nature Ramblings: Remember the Birds

The Plant Breeder Becomes an Inventor

Better Animals Stocking Farms of America

Carnegie Exhibits to Portray Variety of Researches

New Microscope Reveals Plant Cell’s Secrets

Mt. Lassen Steam Vents Changing Form and Location

Prepare to Broadcast Sound with Television Programs

Six of Shaw’s Universe Makers in List of Great Astronomers