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The Canons of the Colorado

[Compiled from the Report of Prof. J. W. Powell, Geologist, in charge of the Geological and Geographical Survey of the Territories]

The Hot Springs, Bath County, Virginia

Eruption of Mount Hecla

Torpedo Guard

The Shell Trials at Shoeburyness

Improved Breech-Loading Mechanism

A New Rocky Mountain Gold Mine

By Wm. F. Wheeler

The Coal Question

Process of Sinking Oil Wells

An Iron Warehouse

Manufacture of Bessemer Steel and Steel Rails

By C. B. Holland

Increase of Mail Service in the South

The Underground Railway in Paris

The Huelva Pier of the Rio Tinto Railway

New Subway in London

“Gaspillage Et Insouciance”

Musical Sand

An Artesian Well 3,120 Feet Deep

The Phonograph and its Future

By Thomas A. Edison

Gelatine Negatives

By H. J. Palmer

The Radiometer and the Spheroidal State

The Hair Hygrometer

Power for Electric Illumination

Patience in Dry Plate Photography

Cleaning Old Engravings

Processes for the Preparation of Violet Ultramarine

Improvements in Aniline Colors

Improvements in Aniline Blacks

By Antony Guyard

How Granite is Polished

Bismuth-A Comparison of the Methods for its Estimation

By B. Stillman

The Microscope in Chemistry

By H. C. Sorby

Colors from Iron Turnings and Filings

By C. Steinan and R. Steinan

The Nature, Origin, and Progress of Disease in the Human Body

By J. B. Graves

Sulphur Mines

Sprouting of Silver and its Cause

Smelting Works

By Theodore Fluegger

On the Denaturation of Alcohol

Manufacture of Anthraquinone

Anna Morandi Manzolini, Professor of Anatomy at the University of Bologna

By Mademe Villari

The Ear


Cost and Nutritive Value of Foods

Facts about Sleep

J. A. Graver, of Delaware Water Gap

Oxford and Cambridge Chess Match

Petroff's Defense

Scientific American Chess Record

Solutions to Problems


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