Features
Casualties--Military and Civil
Electric Railways and Population
The George Washington University
The Current Supplement
Cables that Withstand 90,000 Volts
The Progress of Aviation Since 1891
A Simple Rim for Detachable Tires
A Swimming School for Cavalry Horses
A Home-Made Wireless Signaling Transmitter
Salt Making on San Francisco Bay
The New Blackwell's Island Bridge
The Barossa Dam, Southern Australia
Lineman's Support
Patent Department
An Ink-Controlled Fountain Drawing and Writing Pen
Hose Coupling
Rail-Joint Connection
Railway Gage
The New Trade Mark Law
Oddities in Invention
Business and Personal Wants
Departments
- Departments
The Heavens in April - April 1, 1905
Correspondence - April 1, 1905
Recently Patented Inventions - April 1, 1905
Notes and Queries - April 1, 1905
Index of Inventions - April 1, 1905
