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The Moles of Saint-Jean-De-Luz

Boynton Bicycle Road

Tail Shaft Preserver

Trevithick's Historic Boiler

Petroleum Engine Exhibits at the World's Columbian Exposition

New British War Ships

The Voysey & Hosack Road Scarifier

Solid Silverware Cheaper than Plated

Notes on Silk Bleaching

By S. J. Pentecost

Magnesia Firebricks

Cut Nails and Wire Nails

Extraction of Gutta Percha

Improvements in Galvanizing Iron

By G. Retterer

Improvements in Melting Furnaces

By F. H. Mallahand

Combination of Stow Flexible Shaft and Electric Motor

Physical Geography of the Ocean Bottom

By Ralph S. Tarr

Rhus Poisoning

By H. W. Felter

A Collector of Atmospheric Electricity

By L. Palmieri

Mount Orizaba, or Citlaltepetl

By J. T. Scovell

Meissonier's Works in London

The Appreciation of Gold

The Commission of Arbitration of the Behring's Fisheries

The Chinese Question

Sol Stone's Rule to find Day of Week for any Date in Present Century

The Locomotion of Diatoms

Upland Rice

Rice Culture

Useful Engineering Books

A New Form of Barometer

Patents!

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    June 17, 1893

    Beyond XX and XY

    Biology. Identity. Equality.