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Features

The Photophone

An American Catamaran in London

Our Immigrants and Where they Go

New Torpedo Vessel

Improved Moulding Machine

Recent Brake Trials

The Old Horse Mill

Gutta Percha in Telegraphy

By W. H. Preece

Washburn Mill “A,” Minneapolis, Minn

The Port of Antwerp

Mosquitoes as a Stimulant to Reproduction

The Influence of Age Upon the Intellect

Whymper's Second Ascent of Chimborazo

What is a Zenana?

By Murray Mitchell

New Measurement of the Velocity of Light

The New Relation Between Light and Electricity Discovered by Dr. Kerr

By W. C. Rontgen

Phthisis

Improvements in the Production of the Electric Light

By F. H. Varley

On Currents Produced by Friction Between Conducting Substances, and on a New Form of Telephone Receiver

Acute Rheumatism Treated by Hot Washing-Soda Baths

Callender's Method of Treating Abscess

On the Reduction of Chloride of Gold by Hydrogen in the Presence of Platinum

By D. Tommasi

The Manufacture of Cinchona Products

The Structure of Spermatozoa

Parasites in Muscle in Typhoid Fever

Rapid Breathing as a Pain Obtunder

Tuberculosis as an Infectious Disease

Detection and Determination of Oils

By M. A. Remont

Processes for Purifying Oils With Alkalies

By M. Blondeau

Improvements in the Production of Ammonia

Analysis of Various American Tinned Food Products

By G. W. Wigner

On the Extraction of Iodine from Seaweeds

By Thiercelin

The Fourth State of Matter—A Refutation

The Problem of Life

Zinc in Spring Waters

By E. Mylius

“Azo” Dyes

Annual Meeting of the American Association of Science

Artificial Indigo

A New Method for Determining the Value of Zinc Powder

By V. Drewsen

Pittacal

Practical Apiculture

Oak Galls

Friction of Lubricating Oils

Lightning Bugs

Felidæ in Captivity

A German Corded Poodle

The Percheron Horse

Atmospheric Bacteria

By P. Miquel

How to Make Trout Ponds

Valuable Grasses of New Zealand

Phylloxera in California

The Bean-Faba Vulgaris

By Louisa Reed Stowell

Ensilage Fodder

Gestation of Domestic Animals

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