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The Guncotton Problem

By Frederick H. Mcgahie

Two Famous Boer Guns

Vibrating Table for Testing Accumulators

The Manufacture Of Coal-Gas

English Cotton Trade

Trade Suggestions from United States Consuls

Trade Notes and Receipts

Miscellaneous Notes

Selected Formule

Kite Meteorograph Construction and Operation

Meteorology in the Schools

The Influence of School Life on Vision

By Peter A. Callan

The Evolution of the Seeing Eye

By William Patten

An Important Patent Decision

By Arthur F. Kinnan

The Egg-Carrrying Habit of Zaitha

By Florence Wells Slater

Oyster Culture in France

Abstract of the Report of the Committee on Canals of New York State

Germany's Latest Battleship

The Simplon Tunnel



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