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The Thebes Railroad Bridge

By Charles Alma Byers

Production, Imports, and Exports of Iron and Steel

Railroad Housekeeping Economies

Ozobrome Photography

By Chapman Jones

Pinachromy and Pinatype: New Processes of Color Photography

By H. A. Metz

Lights of other Days


By Fred R. Coles

The Increase of Knowledge in the Several Branches of Science

By E. Ray Lankester

Remedies and Preventives against House Flies

Two Fox Cubs and their Foster Mother

By Oxley Grabham

The Nutritive Value of Cereal Breakfast Foods

Cistern Cleaners in the Delta

By Raymond S. Spears

Submarine Coal Mining

Chain-Making Machinery

By Emile Lelong

The Vitriolizing of Wheat

Contemporary Electrical Science

Optical Illusions

Electrical Notes

Engineering Notes

Science Notes

Trade Notes and Formulæ


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    September 01, 1906