Feature

Copper as Important in Food as Iron

Serious Petroleum Shortage Predicted in near Future

Fears of Petroleum Shortage Held Greatly Exaggerated

Butane, Propane Useful When Made into Liquids

[Photograph]: New Plane Is Queer-Looking, but Safe

Cancer Treatment Advance Awaits Better Lead Compounds

Synthetic Cortin to Pave Way for Disease Conquest

“Very Truly Yours”: 2000 B. C.

In Science Fields

Full Moon Close; Tides High

Honey Given to Dead in Old German Burials

Multiple Lightning Strokes Crush Strong Wires