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Features

A Railway Engineer's Predicament in India

Effect of Oil on Disturbed Water

By Richard Beynon

Surface Waters

The Theory of Water Gas

By Alex. C. Humphreys

A New Method of Preparing Fluorine

Large Lever Punching Machine

On the Most Economical Engine for small Power

By J. E. Denton

Pile Protection

New Counters for Hacks

Paper Machines at the Paris Exhibition

The Flour Mill in Algeria

Apparatus for Extinguishing Fire in a Ship's Hold

A Novel means of Distorting Photo. Pictures

Platinotype Printing

Photographing the Hands

Sibley College Lectures.—1889-90

By the Cornell University Non-Resident Lecturers in Mechanical Engineering.

By W. Le Conte Stevens

Magnetism

By John Hopkinson

Electricity in Chemical Manipulations

By Reginald Fessenden

The Renard Primary Battery

The Pyrometric Telescope

Rabies and its Preventive Treatment

By Armand Ruffer

Voice Lozenge

Building Plans and Specifications

Useful Engineering Books

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    March 01, 1890

    Beyond XX and XY

    Biology. Identity. Equality.