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An Astronomical Season

Double and Multiple Stars

By Wm. H. Knight

Direction and Velocity of Winds

Plants Capable of Yielding Tanning Materials

By F. E. Mafat

A Chinese Peach

Antarctic Exploration

By Eugene Murray Aaron

The Broom and its Allies

Darjeeling

By C. Jacobus

Recent Discoveries of Manganese Ore

Carriage with Elastic Traction and Suspension

Duplex Horizontal Boring Machine

What is the Best Preparation to use on a Painted Wall that is to be Papered?

The Mining Industries of Huelva

The Centrifugal Emulsor

By Martin Ekenberg

The Electrolytic Manufacture of White Lead

Dimension Stone Quarrying—The Blasting Process

Penny in the Slot Railway Lamps

Easy Lessons for Students

Electric Bells

Some Simple Scientific Experiments

Odors and the Sense of Smell

By M. Charles Henry

Apparatus for Boiling Eggs

Early Rising not Always a Virtue

Humane Treatment of Domestic Animals

Analyses of White Sands

Apparatus for Washing Precipitates

By Matthew Forbes

A New Laboratory Still

The Concentration of Oil of Vitriol

Quinite

The Solubility of the Phosphoric Acid of Bone Meal

By H. Otto

Patents!

Useful Engineering Books

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    October 08, 1892