SA Supplements Vol 79 Issue 2035supp

SA Supplements

Volume 79, Issue 2035supp

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Features

Actual Instances of Dual Personalities—I

Cases in Real Life That Rival the Wildest Fiction

Edward Tyson Reichert

Odessa, the Grain Port of Russia

Translucent Glass Bricks

Preventing Soil Erosion

A Valuable Sub-Tropical Hay Grass

The Pearl Fisheries of Ceylon

How the Pearl-Bearing Oysters are Gathered by Naked Divers

R. I. Geare

X-Rays and Crystalline Structure-

Discoveries That Assist in the Understanding of Theories of X-Rays and Light

William H. Bragg

The Geology of the Yellowstone National Park

A Striking Topographical Structure and a Complete Geological Problem

Carl Hawes Butman

Purification of Water by the Ultra-Violet Rays

Principles Underlying the Most Recent System for Destroying Germ Life

M. von Recklinghausen

The Photokaleidograph

An Apparatus for the Production of Kaleidoscopic Pictures

The Stars around the North Pole

The Determination of Their Proper and Irregular Motions

Locomotive Headlights

Another System of Generating Electricity

Dr. Bose's Visit to America