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Results of the Greely Expedition

Iceland.—Mr. Thoroddsen's Geological Explorations

The Useful Minerals and Rocks

Yellowstone National Park

Red Sunsets

The Origin of Bitumens

By S. F Peckham

The Teredo and its Work

Antiquity of Man in America

The Phylloxera of the Oak

The Musk Rat (Fiber Zibethicus)

By E. Gregory

Lifting Wheels for Copper Mines

An English Testing Laboratory

The Dynograph Car

Mortars and Cements

By Job Tuthill

The New Aqua-Aerial or Wave Ship

Filter for Sugar-Manufacture of Sugar without Boneblack

Utilization of Sawdust

Apparatus for Instantaneous Photograph

Zinco-Starch Vaseline Paste

Growth of Electrical Science

Experiments on Electric Lighting, at Brest, for the Defense of Passes

On Electricity and its Present Applications

By W. Fraser

A Hint to Shippers of Apples

Electro Motors

Geometric Ornament

By Lewis F. Day

Physics without Apparatus


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September 06, 1884

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