Volume 14, Issue 357supp
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Features
The Pyrophone
Frederic Kastner
Dearborn Observatory
The Present Phase of the Antiquity of Man
The Old and the New World
A Desolate Island
Mastodon Skeleton Found
The Hudson River Tunnel—The New York Works
Compressed Air Locomotives
Compressed am for Purposes of Locomotion, as Illustrated by the Tramcar System Employed at Nantes
Schwartzkopff's Safety Apparatus for Steam Boilers
The History of Magneto and Dynamo Electric Machines
Secondary Batteries
On Secondary Batteries, with Special Reference to Local Action*
Mcevoy's Electric Submarine Detecter
The Equilibrating Value of Nervous Control
The Cause of Sick Headache
The Production of Ammonia Water
Alveolar Abscess.—Peroxide of Hydrogen
Abscess of Antrum
Snake Bite—Rapid Cure by Phenic Acid
Gold and Silver Amalgams for the Teeth
Testing Urine
For Albumen