The British First-Class Battleship Prince George

Traffic on Asphalt

The Tunnel under the Spree, near Treptow

The Water Power of the Drainage and Ship Canal, and its Transmission to Chicago

Home-Made Graduated Measures

Printing out Weak Spots in Negatives

Selected Formulæ

Engineering Notes

Electrical Notes

Miscellaneous Notes

A Petroleum Irrigation Pump

Thirty Ton Steam Locomotive Crane

The De Dion & Bouton Gasoline Tricycle

The Toxic Effects of Tobacco

The Presence and Significance of Bacteria in Air, Water and Food, and their Relation to Health

Nashville, Tenn., Professor of General, Descriptive and Surgical Anatomy and Microscopy in the Medical Department of the University of Tennessee

Copper from Green Water

Cryptoscope Screens

A New Fluorescent Substance

Vanadium and some of its Uses

Fiske's Helm Indicator and Steering Telegraph

Electric, Lighting of Avenue De L'opera, Paris

Scenery of the Moon

The Temperature of Incandescent Lamp Filaments

Meteorology in Schools

Sweden's Great Exhibition

The Orchid Disa Pulchra, Sonder

A Novel Experiment on Vegetation

Pasteur's Tomb

A Strange Island

Patents!

Gulf of St. Lawrence Tides

Prediction of Earthquakes by Animals