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Features

New Spanish Artillery

Qualitative Tests for Steel Rails

By L. Tetmajer

A New form of Small Bessemer Plant

By A. Trappen

Triple Compound Engines

By A. E. Seaton

Early History of the Steam Jack

Bridge at Verona

Pumping Machinery

Mine Pumping Machinery

By E. D. Leavitt

Improved Gun Pressure Gauge

Improved Plaiting Machine

The Distillation of Sea Water

Self-Acting Shuttle Guard

Ruler and Triangle for Hatching

Aids to Correct Exposure on Photographic Plates

Distortion from Expansion of the Paper in Photography

Isochromatic Photography

By Fred. E. Ives

Groups of Statuary for the Pediment of the House of Parliament in Vienna

On the Fritts Selenium Cells and Batteries

By C. E. Fritts

Measuring the Thickness of Boiler Plates

Electricity Applied to the Manufacture of Varnish

A New Reflecting Galvanometer

The Gerard Electric Lamp

Naglo Brothers' Telephone System

Histological Methods

Life History of a New Septic Organism

Silk Worm Eggs

Winter and the Insects

Determining the Mean Density of the Earth

The Casino at Monte Carlo

Physics without Apparatus

Erythroxylon

COCA

On an Express Engine

The Melloco

Departments

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June 06, 1885

Think Outside the Gift Box