Feature

New Design of Cloud Chamber Cuts Weight over 900 Pounds

New Electric Device Detects Distances Less than Atom Size

Measurements Show Changes in Faces of Growing Children

Summer Sun Has Six Times Burning Power of Winter’s

First Glances at New Books

Back Matter

“Silver Salve” Kills Germs; No Harm to Tissues

Cat-Fight 50,000,000 Years Ago Left Sabre-Tooth Scar

[Photograph]: Reaping a Harvest No Man Had Sown

Nature Ramblings: New Harvests

Franklin’s Descendant Seeks His Gulf Stream Map

First Glances at New Books