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Mont Blanc

The Island of Sakhalin

The Half Tone Process Popularly Explained

By W. Gamble

Portable Luminous Projector

The Measurement of small Gaseous Pressures

By Charles F. Brush

Rarefied and Condensed Air

The Zodiacal Light

By E. E. Markwick

Fishing during the Trip of a Merchantman


Solution for Preparing Color Sensitive Plates

The Printing-Out Platinotype Process

Delicacy of Various Reactions for Metals

By B. Neumann

Engineering Notes

Miscellaneous Notes

Selected Formulæ

Francois' Air Compressor and Rock Drill

Right and Left Handed Armature Winding

By C. C. Hawkins

Art and Nature in Landscape Gardening

On the Ascent of Water in Trees



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    October 30, 1897

    Science for the Modern World