Features
The Improved Polar Refrigerator
Trial Trip of the Morning Star
Taxidermy--Preserving the Skins of Quadrupeds, Fish and Insects
Hints for Housekeepers
Valuable Receipts
The Proposed Canal Enlargements
The Proposition to Introduce a State Patent System
Our National Defenses
Defective Wrought-Iron
Practical Hints to the Machinist
The Iron-Clad Steam-Battery Roanoke
Important Patent Trial--Cotton-Cleaning Machines
The Attack on Charleston
Preserving Botanical Specimens
Cincinnati Water Works--The Engineers Report
Recent American Patents
Patent Claims
Issued from the United States Patent Office
Departments
Correspondence
Notes and Queries
