Improved Bridle

On a Method of Drying Glutinous Substances

Engraving with a Sunbeam

Differential Pulley Blocks

Miscellaneous Summary

New Publications

Notes on New Discoveries and New Applications of Science

The Hydraulic Properties of Megnesia

The Foot Lathe

Number 7

Habermehl's Eliptic Grate

Keller and Henderson's Ice-Making Apparatus

Recent American Patents

Fairlie's Double Locomotive

Geology of the Central Railroad Waters

The Great Paris Exhibition

The Smoke of the River

The Circuit of Carbon through Animal and Vegetable Life

Austrian Industrial Exhibition

Patent-Office Decisions

Comfortable Skating

Prof. Blot's Cooking Academy

Special Notices

Patent Claims

Issued from the U. S. Patent Office

Patent Office

Patents Granted For Seventeen Years

The Scientific American

Patent Agency Office