Features
New Method of Gold Extraction from Pyrites Used in Italy
How Long Must We Suffer Our Engineering Department at Present the Creature of Party Politics
Borax, and Food
A Novel Air Compressor
An Apparatus for Preventing Seasickness
The Plans for the New Manhattan Bridge
The New White Star Liner "Baltic" --the Largest Vessel in the World
By the English Correspondent of the Scientific American
Lensless Photography
Cascades and Colonnade of States at the Exposition
By the St. Lousis Correspondent of the Scientific American
A Compensating Windmill
Voting Machine
The New Australian Patent Act
Chain Clamp
Improved Gage
Grain Lifter for Headers
Hose or Pipe Coupling
Ventilated Eye-Shade
Business and Personal Wants
Departments
- Departments
Correspondence - July 16, 1904
Recently Patented Inventions - July 16, 1904
New Books, Etc. - July 16, 1904
Notes and Queries - July 16, 1904
Index of Inventions - July 16, 1904
Patents - July 16, 1904