Feature

Stickiness of Clay Useful in Warfare against Insects

Temple Ten Miles Long Contains Map of Moon

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New Oil to Be Obtained from Used Oil

Sulphur Found Ideal Apple Spray

Ancient Plant Fossils Tell of Old Climates

Iron Known to Primitive Man Says Harvard Scientist

Mars May Support Life, New Observations Show

Presidential Address at American Association Calls for Conservation

Egg Supply Treatened by Invisible Raider

Says Infection May Lurk in “Harmless” Organisms

Plant Lives in Air; Yet Has High Iron Content