Improved Water Grate and Steam Generator, How Eyes are Made

Enameling Wood Work

[From The Building News.]

A New Stone

Exercising Club

The Present and the Past- February 18, 1871

Knapp's Fluting and Flat Iron

Perpetual Motion- February 18, 1871

Agricultural Patents of the Year

Organic Matter in Water

The Electro Deposition of Copper and Brass

Kerosene Murder

Stone Cutting by Machinery

The Uses of Apatite

The Average City Dwelling House

Annual Report of Commissioner of Patents

New Patent Law of 1870

Answers to Correspondents- February 18, 1871

Queries- February 18, 1871

Applications for Extension of Patents- February 18, 1871

Recent American and Foreign Patents- February 18, 1871

Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.

Official List of Patents- February 18, 1871