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Fertilizing Value of Oil Cake



Mosquitos and Color

Relations between Geology of Petroleum and its Origin

Employment of Chemical Products for the Destruction of Weeds

The Bursting of Small Cast-Iron Flywheels

By Charles H. Benjamin

A Century of Progress in Acoustics

Printing Roller Compositions

By A. Leslie

The Gallo-Roman Graveyard near Beimbach

The Mineral Springs of Austria

The Venom of Serpents, and Antivenomous Serum

The Action of Chromates and Bichromates on Colloids (Gelatine, Albumen, Gum, Etc.)

By R. Namias

Recent Science

The History of Alcohol

By B. Newmann

A New Auto-Trolley for Electric Vehicles

The Audiphone Diocinescope

Solution of Tar Oil for Impregnation of Wood by the Rütgers Process

The Non-Photographable

“Ammonal”—A New High Explosive

By G. Roth

Daylight Enlarging of Photographs

How Animals Avenge Themselves

Trade Suggestions from United States Consuls

Trade Notes and Receipts


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