From the October 1, 1932, issue

WARNING SPOTS OR TARGETS?

Eye-spots, like those on the wings of the Cecropia moth on the front cover, are commonly interpreted either as warning markings, to scare off enemies, or as “targets” to draw the enemy’s attention to a non-vital spot. But moths get eaten anyway.–(Photo by Cornelia Clarke).

COSMIC RAYS BOMBARD EARTH WITH 40,000 MILLION VOLTS

Cosmic radiation bombards the Earth with energies of some 40,000 million volts, which is about forty times the highest energies usually assigned to the ultra-penetrating radiation being so intensively studied by physicists throughout the world.