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Features

Proa Ladronia

The Russian Yacht Livadia

A Catamaran Steamer

Derrick Used at Davis Island Dam

By James Harlow

The St. Gothard Tunnel

A Feat in Triangulation

Music in the Sawmills

Modern Autographic Printing Processes

By Thomas Bolas

Improved Filters

Dynamo-Electric Machines

Mirrors in Photography

An Experiment on Induction

Electric Lighting in London

Recent Wonders of Light

By W. H. Preece

A New Standard of Light

Flow of Viscous Materials—a Model Glacier

The Function of Chlorophyl

Precautions in Comparing Weights

Powers of Eyepieces

On New Luminous Tubes

By M. Treve

Mechanical Skid for Raising Casks and Other Packages

On the Solubility of Solids in Gases

By J. B. Hannay and James Hogarth

The “Egasse” Disinfectant

Julhe's Extraction Apparatus

Alcohols in Unfermented Fruit Juices

By Gutzeit

Examination of Mustard

By Channing T. Gage

Mineral Lubricating Oils

By Oscar Bremken

Action of Ozone on Certain Noble Metals

By A. Volta

The Science of Gas Burning

The Ecclesiastical Art Exhibition

Sulphureted Hydrogen in Beer

Preparations of Crystals for the Polariscope

Nitrogen, Sulphur, and Chlorine in Organic Bodies

By P. Spica

Proportions and Conformations of the Horse

Adaptation of Cicindelidæ

Fertilization of Flowers by Humming Birds

The Fossil Lovers

A Ramble Through Ceylon

Farming in Southwestern Minnesota

Art and Nature

The Water Sheds of the State of New York

Fruit Crop of the Country

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    April 24, 1880

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