Conditions of the Battleships after the Long Cruise

Ornamentation in Lake-Dwellers' Habitations

Futile Criticisms of the Lock Canal

The Turbine the Complement of the Compound Engine

Electricity

Engineering

Aeronautics

Kaemper's Discoveries in the Mammoth Cave

A Wonderful Model of the Strasburg Clock

Feeding the American Army

Sulphate of Copper as a Fungicide

The “North Dakota's” Turbines

A Rack and Pinion Problem

Col. J. J. Astor's Vibratory Disintegrator

An Ingenious Device Which Manufactures Prouducer Gas From Peat and the Patent Covering Which will be Given to the Public

The Sigafoos Tunnel Machine

Injury to the Turbines of the Scout "Salem"

Latrodectus--The Poisonous Spider

The Flying Gurnards