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Experiments in Navigation with a Compressed Gas Motor

American Steam Snow Plows in Germany

Multiple Drilling Machine for Wheels

Timber Preserving Methods and Appliances

By W. G. Curtis

A Portable Rowboat

Vacuum Evaporating Apparatus

Self-Regulating Gas Generator

By W. W. Andrews

New Metric Standards

Extraction Apparatus for Liquids

Notes on Silvering Solutions and Silvering

Atmospheric Electricity


Gustave Michel's “Flowers of Spring.”

Explosion Due to Sodium, and the St. Pancras Explosions

An Interesting Case of Tongue Tie

By G. Hudson Makuen

Brain Surgery for Idiots

The Inquisition in Mexico

Population of the Earth, in Diagram


By Thomas Child


New Animals from Madagascar

By R. Lydekker


The Fundamental Difference between Plants and Animals


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