Volume 91, Issue 23
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Features
Electric Traction for Trunk Roads
Production and Population
Gas Turbines
A United States Warship on Trial
Subway Results
A Tilting Lock-Chamber
A Locomotive in Service Sixty Years
New form of Liquid Rheostat for Starting Electric Motors
By Our Belgian Correspondent
The Registration of Meteorological Phenomena in Lapland
An Interesting Relic
Henri Becquerel
The California Redwood in Modern Engineering
Comet 1904 A
The Ancient Races of Yucatan and Mexico.--II
Wax Farming in China--A Strange Industry
Business and Personal Wants
Read this column carefully.—You will find inquiries for certain classes of articles numbered in consecutive order. If you manufacture these goods write us at once and we will send you the name and address of the party desiring the information in every case it is necessary to give the number of the inquiry Munn & CO