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Recent Decisions Relating to Patents

Supreme Court of the United States.

Experiments with Vacuum Tubes

Physics without Apparatus

Application of the Electric Light at the Angers (France) Slate Quarries

The French International Electrical Exhibition

The Phare Gas- Burner

New Gas Burner

A New Instrument for underground Surveying

Rober's Automatically-Fed Furnace

The Construction of the Photophone

A New Heater

The Plattsmouth Bridge

The Mechanics of Bird Flight

Wire Cable Gear.—S.S. Moewe

Zoological Notes

A Rare Coleopterous Insect

The Gorilla

Chicken Cholera

By M. L. Pasteur

The Materialistic Origin of the Sexes

By Andrew Dewar

Treatment of the Insane at Gheel

Selection and Preparation of Food

By Ruth Smith

A Case of Rattlesnake Bite

By M. L. Dick

Tobacco Smoking by Children

On the Viscosity of Solutions

By B. T. Trueblood

Predisposing Causes of Phthisis

Vapors for Inhalation

Diphtheria and Ozone

Quinine for Hypodermic use

Hot Ice

Preliminary Note on the Existence of Ice and Other Bodies in the Solid State at Temperatures Far Above Their Ordinary Melting-Points

By Thomas Carnelley

Adulteration of Foods

The Oxidation of Alcohol

The Liquefaction of Ozone and its Color in the Gaseous State

By MM. Hautefeuille and J. Chappuis

The Acidity of Malts

Comparative Values of High and Medium Quality Barleys

Homofluoresceine, a New Coloring Matter

By H. Schwarz

Safety Checks

The Action of Diastase on Starch


Detection of Iodine in Bromine

By A. Jorissen

Spectral Reaction of Chlorine and Bromine

By M. Lecoq De Boisbaudran

Synthesis of Salicylic Acid

By Edgar F. Smith

Cultivating Corn

Hot-Bed Frames

Two Comets

Convenient Way to Store Roots

Making a Lawn

Cheese Mould

Progress in the Sciences and Arts for 1880


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