SA Supplements

On Some Modern Systems of Cutting Metals

The Concentrating Mill at the O'neil Mines, Galena, Kansas

Improved Compressing Machine

The Jointing and Testing of Gas Mains

Ancient Spherical Clock

Elastic Wheeled Traction Engine

Rarefied Air as Motive Power

High-Speed Boats

Twin Screw Shallow Draught Steamer

Proposed New Tunnel Under the Thames, London

A House Costing $2,500

Atmosphere and Space in Painting

F. Schaper's Restoration of the Hermes of Praxiteles

Tasar Silk

On the Action of Chlorine on Certain Metals

Sir William Siemens on Solar Physics

Reichenbach and the Psychical Research Society

The Luminosity of Non Illuminating Gas Flames

On Radiant Matter Spectroscopy: a New Method of Spectrum. Analysis

Origin and Formation of Metalliferous Deposits

Cocoa-Nut Fiber

Cassia and Cinnamon

Patents