The Polyphemus

H.M.S. Polyphemus

The Canal System of New York

Introduction

The Bollee Steam Carriage

Annular Wheels

Forms of Epicycloidal and Involute Teeth for Inside Gear—Failure of the Odontographs to Meet Certain Practical Cases

The Old Aqueducts of Paris

Farquhar's Filtering Apparatus

Suggestions about Stuffing Cushions

Heat in Relation to Chemical Action

A Simple Equatorial

The Pressure of Wind

Hylozoic Materialism

Voss's Induction Electrical Machine

Theory of Thermo Electric Motive Forces

The Chemical and Physical Effects of Fillings Upon Teeth

Modification of Anesthetic Methods

On Harvesting Machinery

Rheumatism

Ensilage

Saddle Horses

To Keep Very Shaded Places Green

Jottings about Snakes

Land Snails

Fossil Saiga-Antelopes

Natural History of Butterflies

Tanning

Cane Sugar from Molasses

Disinfection by Nitrous Oxides