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Close of the Great Exhibition—The Last Salvo from the Eiffel Tower

The Physiology of Good and Evil

By Benjamin Ward Richardson

Conjuring Tricks, and how to make Them

The Nicaragua Canal

H. M. S. Inflexible

The New Steamer Friesland

A New Recording Pressure Gauge

By W. H. Bristol

New Drawing Tools

Cost of Electric Arc Lights

Electricity in the Engine Room

Storage Batteries at the Paris Exhibition

By A. and F. Reckenzaun

New Electric Radiation Meter

Instruments for Measuring Radiant

By C. V. Boys

Dr. J. P. Joule, F.R.S

The Vintage at Macul, Chile

Substitute for Kipp's Apparatus

By Eustace Thompson

Santiago, Chile

The Life Work of a Chemist

By Henry E. Roscoe

Building Plans and Specifications

Useful Engineering Books


  • Departments

    Patents- December 14, 1893

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