SA Supplements

The Paris Exhibition—Hotchkiss Ordnance

Coaling of War Ships

The 2,000 Ton Cruisers

High Speed on Meridional Railways

The New Port of Calais

The American Paper Bag Machine at the Paris Exhibition

Decomposition of Stones

Structural Strength of Sea-Going Torpedo Boat No. 1

Instruments for Drawing Curves

On the Cause of the Accumulation of “Black Paste” in Steam Chests and Cylinders

Edison's New Phonograph

Gaston Plante

New Electric Launch

William Tempel

Electrical Smelting and Production of Aluminum

On Allotropic Forms of Silver

Process for Hardening Plaster of Paris

The Mysterious Ball

The Wagon Wheel Question

The Wave Length of Light as a Practicable and a Feasible Standard of Length

The Squirrel Question

The x+y Problem

Bambangala

Notes on the Production of Maple Sugar

Prevention of Consumption

Building Plans and Specifications

Composition of a Brick from the Brick Yard of S. P. Crafts, at Quinnipiac, Three Miles North of New Haven, Conn

The Voltaic Current obtained with Bismuth in a Magnetic Field

Patents- July 13, 1889