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The Accident to the Steamer City of Paris

Pochet't Movable Dam

The Steam Tricucle

Transmission of Power by Manila Ropes

By John.H. Gregg

Pocket Valve for Gas Motors

A Dividing Machine for Amateurs

Improved Separator

Califorina Redwood Logging

By C.E. Potter

Electrical Carpet Sewing Machine

An Entomologist's Experience

By T.G, H

The Edinburgh Exhibition

The Estimation of Minute Quantities of Gold

By George Tate

Atropine as an Antagonist to Chloroform

Hypnotism as an Anæsthetic


Culture of Strawberries and other Fruits

The Color of Fishes

By G.Brown Goode

The Hemlock Spruce

Assumption and Fact in the Theories of Solar and Stellar Proper Motions

Building Plans and Specifications

Effects of Retarded Dissolution

By H.N. Warren

Useful Engineering Books


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    May 24, 1890

    20% Sitewide for President's Day