SA Supplements

The Lyman-Haskell Gun

Improved High-Speed Engine

Improved Rotary Engine

Improved Locomotive and Tender

The Engineering and Metal Trades Exhibition, London

Brickwork

Recovering Silver from Waste Gelatine Emulsion Plates or Paper

Crystals from Slow Combustion of Ether

Resistance of Cotton to High Temperatures

Sulphur

Freezing Point of Acid Solutions

The Use of Butter, Milk, and Mammary Tissue in the Manufacture of Butterine

New Color Reactions of the Alkaloids

Chemical Composition of Some Food Animals

Ready Test for Sulphite of Soda

Locusts as Food for Man

Common Defects in the Sanitary Arrangements of Houses, and their Remedies

The Origin of Atmospheric Electricity, and its Connection with the Electrical Occurrences Upon Our Globe

A New Astral Photometer

Sir Edward Sabine

Military Ballooning

Mushrooms

The Big Trees of California

Buckwheat—A Neglected Crop

Blanching Celery

Manufacture of Fertilizers from Sewage

On Some Theoretical Considerations Connected with the Hardening and Tempering of Steel

Curved Diffraction Gratings

Poultry

Patents