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The Art of Preserving the Eye-Sight

Some Recent Additions to the Botanical Materia Medica

Koumiss; its Mode of Preparation and its Remedial Value

By William Pepper

Opium vs. Coffee

M. Richet says, in a popular article, in the Revue des Deux Mondes :

Hemiplegia from Cerebral Hemorrhage

By Austin Flint

On the Physiological and Therapeutical Properties of Glycerine

By M. A. Catillon

Lines on the Surface of the Nails

Pill Coating

By Edwabd S. Bull

Floors

Tin Plate

A Reed, and how it is Made

On a New Method for the Separation and Subsequent Treatment of Precipitates in Chemical Analysis.*

By F. A. Gooch

Fermentation

New Form of Apparatus for Fractional Distillation Under Diminished Pressure

By E. J. Bevan

Improved Forty-Horse Power Engine

Heat in the Deep Gold Mines

Engineers' Club of Philadelphia

Floats for Docking Ships and Raising Sunken Vessels

American Essential Oils

A Novel Brick Kiln

Not a Gambling Game

Solutions to Problems

Danbury News Tourney

The Onondaga Problem Tournament

Sans Voir

W. Grimshaw, of England

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    Scientific American Supplements Volume 5, Issue 130supp

    Beyond XX and XY

    Biology. Identity. Equality.