Volume 91, Issue 9
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Features
The Romance of Light
Railway Speeds Here and in Europe
The Scientific American and the St. Louis Fair
Glass Models of Microscopic Forms of Life--An Interesting Art
The New York Subway Instruction Car
Side - Door Coaches for World's Fair Service
The Direct Production of Photographs in Colors by a New Method
Ice-Cutting Machine
War Department Exhibit at the St. Louis Fair
By the St. Louis Correspondent of the Scientific American