Volume 28, Issue 3
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Features
Oxidizing Agents
Prospects for 1873
Du Motay's Process for Oxyhydric Illumination
Can Buildings be Set on Fire by Steam Pipes?
Collapsing Boiler Flues
The Austrian Show Before the Senate
To Intending Exhibitors at the Vienna Show
Properties and Uses of Kieserite
An International Show in Spain
The Sewing Machine Monopoly
Practical Advice to Exhibitors in Austria
Balancing Machinery
Improved Feathering Paddle Wheel
Turton's Compensated Spring Safety Valve
Professor Tyndall's Third Lecture in New York Crystals and Light
Gleanings in Science and Art
Nine Horse Power Compound Boat Engine
Design for Ball Ground Pavilion
Bent Woodwork in Carriage Making
Scientific and Practical Information
Patent Office Decisions
Decisions of the Courts
United States Circuit Court---Eastern District of Pennsylvania
Recent American and Foreign Patents
Under This Heading We Shall Publish Weekly Notes of Some of the More Prominent Home and Foreign Patents.