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SA Supplements Vol 17 Issue 420supp

SA Supplements

Volume 17, Issue 420supp

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Features

Single-Rail Railway

Sinking Shafts through Quicksands by Freezing

Improved Safety Valve

Lathe for Manufacturing Spokes

Smoke Burning Furnaces

Frank C. Smith

The Generation of Steam and the Thermodynamic Problems Involved

W. Anderson

The New Post Office, Minneapolis

Computing the Heating Surface of Hot Blast Stoves

Artisans' Dwellings, Hornsey

Dufour's New Registering Barometer

A Water Pyrometer

Telpherage

The Cost of Electric Batteries

An Easily-Constructed Microphone

The Electric Tricycle

Electrical Conductors

A Simple and Sensitive Thermostat

N. A. Randolph

General Sutter's Account of the Original California Gold Find

New Zealand Scenery—Lake Hawea

The Kaibab, Grand Canon of the Colorado River, U. S. A

The Java Earthquake

Parallel Curves

C. W. MacCord

A Camera Lucida

Method for Preparing Uranic Nitrate or Acetate from the Residues

J. T. Savory

The German Carp, and its Introduction in the United States

Chas. W. Smiley

Selenium in Sulphuric Acid

Drinkwater

The Chinch-Bug