Feature

New Hampshire Was under Sea in Devonian Epoch

Nature Ramblings: Bluegrass or Bluestem?

Gland Therapy Treats Heart Disease Successfully

Front Matter

Children’s Nicknames Merely Lead to Fights

Synthetic Gasoline Promises Sixth More Power for Planes

Bright-Colored Butterflies Avoided by Birds

20 New Kinds of Matter Reported by British Chemist

New Coldest Cold Reached in Leyden Laboratory

Heredity Shares Blame for Ecstasy-Despair Insanity

Establishes Amount of Vitamin B Needed in Diet

New Personality Tests Described to Psychiatrists