Features
A Steam Snow Melter
Publishers' Card
The Loss of the Ville Du Havre
A New Fuel--Carbonite
The Coal Tar Interest
Recent Ordnance Trials
Scientific and Practical Information - December 20, 1873
Albinism Among Birds
Improved Coffee Pot
The Hull Dock Company's New Offices
The Universal Boring Machine
Combined Cooking, Heating, and Drying Apparatus
Design for a Conservatory
The Germ Theory and its Relations to Hygiene
Decisions of the Courts - December 20, 1873
Recent American and Foreign Patents - December 20, 1873
Communications Received - December 20, 1873
Answers to Correspondents - December 20, 1873
Canadian Patents - December 20, 1873
Departments
- Letters
Correspondence - December 20, 1873
- Recommended
New Books and Publications - December 20, 1873
- Departments
Business and Personal - December 20, 1873
Index of Inventions - December 20, 1873
