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SA Supplements Vol 44 Issue 1139supp

SA Supplements

Volume 44, Issue 1139supp

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Features

Mont Blanc

The Island of Sakhalin

Portable Luminous Projector

The Half Tone Process Popularly Explained

W. Gamble

The Measurement of small Gaseous Pressures

Charles F. Brush

Rarefied and Condensed Air

The Zodiacal Light

E. E. Markwick

Fishing during the Trip of a Merchantman

Solution for Preparing Color Sensitive Plates

Dreams

Delicacy of Various Reactions for Metals

B. Neumann

The Printing-Out Platinotype Process

Engineering Notes

Selected Formulæ

Miscellaneous Notes

Francois' Air Compressor and Rock Drill

Right and Left Handed Armature Winding

C. C. Hawkins

Art and Nature in Landscape Gardening

On the Ascent of Water in Trees

Patents!