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The Harlem River Improvement and Ship Canal

Mortar-How to Prepare It

By Edward Wolff

The Fall of Talcen Mawr

Excavator for Blasting Coal and Tunneling

Japanese Shipping

Painting Machinery

Banana Meal and its Future Prospects

The Carbides and Acetylene Commercially Considered

By T.L. Willson and J.J. Suckert

The Manufacture of Castor Oil

Conversazione of the Royal Society

Apparatus for the Demonstration of Resonance

(1)“On the Electrification of Air”

Estimation of Paraffins in Crude Anthracene

Peroxide of Hydrogen as a Bleach

(2)“On the Thermal Conductivity of Rock at Different Temperatures”

Recent Advances in Electrochemistry

By Joseph W. Richards

Vaccination for Diphtheria

Across the Channel on Wheels

Anti-Diphtheric Serum

Village Improvement Societies

By Jno. Gilmer Speed

Why We Laugh

A Spectroscopic Proof of the Meteoric Constitution of Saturn's Rings

By James E. Keeler

Notes on Yucatan


The Benier Gasogene Motor



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