A Novel Use of Cement in Sculpture
How the Statue to the American Indian Was Built
A Railway Car Driven by Gas and Electricity
A Substitute for Steam Trains Where the Traffic is Light
Oil-mixed Portland Cement Concrete, Detecting Icebergs and Land at Sea
Recent Improvements in Electric Vehicles
A Review of Important Patents Granted Within the Last Year
Making Models of the Magnetic Field
Fixing the Iron Filings With Plaster of Paris
A Simple Vehicle Jack
An Electric Harp
Lashing or Seizing Timbers Together
The Trade-mark as a Business Asset, How Legislators View Patents and more
Copyright, 1912, by Munn & Co.
VII.—Shall My Boy Become a Naval Architect?
Practising Efficiency and Knowing Costs, How Much Bread will a Given Quantity of Flour Make?
Abstract of a Letter to a New England Manufacturer
Correspondance - September 7, 1912
New Books, Etc. - September 7, 1912
Inventions New and Interesting - September 7, 1912
Recently Patented Inventions - September 7, 1912
Notes and Queries - September 7, 1912