SA Supplements

August 1881

Volume 12, Issue 293supp

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Features

Compressed Air Clocks

Boilers with Corrugated Flues

Launch of the City of Rome

Common Sense Sanitation

S. Case

Relations of Science to Speculation

J. W. Dawson

Oil Pressing Machinery

Paper Pulp from Wood

The Ruins of Libydia

Reduction of Over-Printed Proofs

W. England

The Roman Villa near Brading

An Electrical Speech-Recorder

The Niobrara Group

Chas. H. Sternberg

To Take Positives in the Camera Direct

J. B. Obernetter

Fruit Sirups

Adolph G. Vogeler

Are we Right Sighted?

Saw Palmetto

The Geology of Florida

The Impurities in Water, and their Influence upon its Domestic Utility

George Stillingfleet Johnson

Chlorophyl

Hardness of Water

V. Wartha

Liquefaction of Gaseous Mixtures

Mm Cailletet, P. Hautefeuille

The Alloys of Manganese

Society of Chemical Industry

Chemical Action in a Magnetic Field

Ira Remsen

Twisting Filter Press

Selenium as a Heat Regulator

Estimation of Butter

L. Medicus, S. Scherer

Terquem's Gas-Burner

Detection of Phosphorus

F. Selmi

Phosphorus.—Symbol P.—Combining Weight, 31

Filtering Apparatus for Viscid Liquids

A Delicate Test for Mercury

The Cat and its Relations

Frederic A Lucas

On a Curious Actinic Phenomenon

T. L. Phipson