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Electrical Apparatus for Measuring and for Demonstration at the Munich Exhibition

Copper Voltameter

A New Oxide of Copper Battery

By MM. F. De Lalande and G. Chaperon

Farcot's Six Horse Power Steam Engine

Endless Trough Conveyer

Railroad Grades of Trunk Lines

Improved Oil Mill

Foot Lathes

English Express Trains

Apparatus for Separating Substances Contained in the Waste Waters of Paper Mills, Etc

Large Blue Prints

By W. B. Parsons

House Drainage ad Refuse

Pasteur's New Method of Attenuation

Convenient Vaults

Poisonous Serpents and their Venom

By G. Archie Stockwell

Ethnological Notes

To Find the Time of Twilight

Grecian Antiquities

Spanish Fisheries

Duck Shooting at Montauk

The Hornbeams

A New Rule for Division in Arithmetic

Fruit of Camellia Japonica

Experiments in Binary Arithmetic


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    January 26, 1884

    20% Sitewide for President's Day