Feature

Electric Knife Now Used for Chest Surgery

Prevention of Water on Brain by Diet Hinted

Assembly-Line Homes

[Photograph]: Insect Eggs

Books of the Week

Revision Proposed for Nautical Almanac

Atomic Scientist Warns against Misinterpretation

Internally Cooled Piston for Explosion Engines

Wind-Finding Equipment

Glaucoma Weapon

Books of the Week

Science Scholarships