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Robot “Sniffer”

Scientists Who Explore Submicroscopic World Meet

Welded Ships Are Superior in Withstanding War Blows

New Machines and Gadgets

Signs of Mental Sickness Should Be Taught M. P.’s

Awards Established to Further Research on Cells

Nature Ramblings: Getting a Break

First Glances at New Books

American Atabrine Proves Identical to Foreign Drug

White Men Seem Stingy

Persimmon Leaves Are Rich in Vitamin C

New Machines and Gadgets