SA Supplements

The New Dusseldorf Bridge Over the Rhine

Coast-Telegraphs and Space Telegraphy

Some New Mechanical Toys

A New Way of Constructing Steam Boiler Furnaces

Boring, Threading, and Countersinking Machine

Vertical Compound Engine

The Paris Metropolitan Underground Railroad

Suppression of Smoke

Old Time Sugar making in Louisiana

Miscellaneous Notes

Engineering Notes

Selected Formulæ

The Paris Cycle and Automobile Exhibition

A New Flying-Machine

Sleep, and what it does for us

The Ethics of the Babylonians and Assyrians

The Evolution of a Strawberry

Myrmecophilous Plants

Acetylene

Typewriter Ribbons

Patents - February 11,1899