Volume 72, Issue 1860supp
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Features
The Duration of Geological Time
Loǵistics
The Marine Diesel Enǵine
A Reversible Engine that Can Be Used Like a Steam Engine
Production of Piǵ Iron by Electricity
From Consul Stuart J. Fuller, Gothenburg, Sweden
Flaws and “Diseases” of Metals
Their Metallographic Diagnosis By the Paris Correspondent of the Scientific American
Practical Aspects of Printinǵ Teleǵraphy—V
An Inventor on the Difficulties to be Encountered and the Way to Overcome Them
The Circumference of a Circle of Given Radius
The Electric Locomotives for the Lötschberg Tunnel
A New Highroad Between Italy and Western Europe
International Association of Chemical Societies
The Evolution of the Umbrella
The Great Antiquity of this Commodity
Protectinǵ the Aeronaut from Liǵhtninǵ
How the Dangers from Atmospheric and Other Causes May Be Mitigated
Determininǵ the Salinity of Sea Water
How to Determine the Day of the Week of Previous Dates
A New View of Roman London
The Highways Laid Down During the Roman Occupation
Manǵanese and Silicon in Foundry Practice
Their Uses and Limitations