Infantile Paralysis
Its Nature, Manner of Conveyance and Means of Prevention
Features
The Cyclo-Harmonograph
An Instrument for Drawing Large Classes of Important Higher Plane Curves
A Memorial to the Engine Room Staff
Experimental Biology
Automobiles in the Great War—II
Types of Cars Used and Technical Details Considered in the Light of Experience Concluded from Scientific American Supplement No. 2117, page 67, July 29, 1916
German Chemical Industries Combine
An Electrically Operated Marble Quarry
Many Different Machines at Widely Scattered Points Demonstrate the Advantages of this Kind of Power
The Hudson Bay Railway
Materials used in Case Hardening
Rapid Nickel Plating
Investigations With a View of Improving Present Methods
Nightblindness
Water Power in the United States
The Restoration of the Dinosaur Podokesaurus Holyokensis
With Reproductions of the Authors Original Drawings
The Future of the Steam Locomotive
A Consideration of the Factors of the Different Motive Powers Available
