SA Supplements Vol 19 Issue 492supp

SA Supplements

Volume 19, Issue 492supp

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Features

Qualitative Tests for Steel Rails

L. Tetmajer

New Spanish Artillery

A New form of Small Bessemer Plant

A. Trappen

Early History of the Steam Jack

Triple Compound Engines

A. E. Seaton

Pumping Machinery

Mine Pumping Machinery

E. D. Leavitt

Bridge at Verona

Improved Gun Pressure Gauge

The Distillation of Sea Water

Ruler and Triangle for Hatching

Improved Plaiting Machine

Self-Acting Shuttle Guard

Aids to Correct Exposure on Photographic Plates

Isochromatic Photography

Fred. E. Ives

Distortion from Expansion of the Paper in Photography

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

On the Fritts Selenium Cells and Batteries

C. E. Fritts

Measuring the Thickness of Boiler Plates

Electricity Applied to the Manufacture of Varnish

A New Reflecting Galvanometer

Naglo Brothers' Telephone System

The Gerard Electric Lamp

Histological Methods

Life History of a New Septic Organism

Winter and the Insects

Silk Worm Eggs

The Casino at Monte Carlo

Determining the Mean Density of the Earth

Physics without Apparatus

Erythroxylon

COCA

On an Express Engine

The Melloco

Departments

Patents - June 6, 1885