SA Supplements Vol 60 Issue 1563supp

SA Supplements

Volume 60, Issue 1563supp

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Features

Use of Gas for Power and Heating.—II

Ernest A. Dowson

The Extraction of Low-Grade Copper Ores

Day Allen Willey

Why Castings Curve

Simple Steam Turbine Engines.—L

John Richards

The Work at Panama

Theodore P. Shonts

The Domestic Life of Animals

Th. Zell

The Sacred Lotus Tree

Theories of Ore Deposition Historically Considered

S. F. Emmons

Porcelain

Eduard Berdel

Thermometers, Pyrometers, and Thermo-Regulators Operated by the Pressure of Saturated Vapors

Thermometers and Pyrometers

Evolution and Inanimate Matter

G. H. Darwin

To Darken Aluminium Sheets

A Soap Solution for Determining the Hardness of Water

Electrical Notes

Trade Notes and Formulæ

Science Notes

Engineering Notes