President Roosevelt Would Reorganize the Navy Department

Tribute to a Civilian Inventor

Electricity

Science Notes

Aeronautics

Battle Practice in the British Navy

How English Royalty Travels

The Aeroplane Military Scout

Curious Facts about Numbers

Gun Erosion

Artificial Sapphires

By the Paris Correspondent of the Scientific American

New Mechanical Toys

Destructive Fungus of White Cedar

Announcement

Let the Clock Open the Furnace Drafts

How to Use the Slide Rule

Drilling Holes in Marbles

Furnishing the Workshop

Simple Driver for Small Drills

Device for Finding Centers of Round Work