Feature

New Machines and Gadgets

Back Matter

Source of Solvent May Vary Harmful Effects

Indian Summer Days

Nature Ramblings: Many Called, Few Chosen

Chemical Society President Asks for Quinine Hoards

Five Science Libraries En Route to War Prisoners

Bad Smells Remedied

Things That Tend to Make Hearing Aids Expensive

New Machines and Gadgets

Books Just off the Press

Front Matter