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The Decorated Gardens of Chicago

Aluminum Steel

By R. A. Hadfield

The Microbe of Phosphorescent Wood

The Cracking of Fruits and Vegetables

Nature's Perseverance

Indian Preserves

A New Method of Extracting Roots

By E. Westervelt

The Curious History of a Ladybird - how it Saved the Orange Interests of California

Quartz Fibers

By C. Vernon boys

The Gullfoss Falls, Iceland

Brain Work and Age

Peroxide of Hydrogen

The Multiple Dispatch Railway

By Max E Schmidt

The Proctor Tower

Photographs in Printing Ink

Separable Mosaic Panels

Electrical Police Apparatus

Instruments for Drawing Curves

By C. W. Maccord

Notes on the Electric Railway: Historical, Statistical and Technical

By F. L. Pope

The Phonopore

The Business end of the American Newspaper

By A. H. Siegfried

Jubilee of the Chemical Society of London

Building Plans and Specifications

Useful Engineering Books


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April 04, 1891

20% Sitewide for President's Day